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expiredTattyBear | Staff posted Mar 14, 2025 03:32 PM
expiredTattyBear | Staff posted Mar 14, 2025 03:32 PM

Small Round Magnets Set: 259-pc (7 sizes) or 500-pc (5 sizes)

$9 each

$15

Amazon
59 Comments 37,761 Views
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Deal Details
VSKIZ via Amazon has Select Small Round Magnets Sets on sale for $8.99. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter TattyBear & community member kiran536 for finding this deal.

Available:
  • 259-pc
    • 100-pcs 3x1mm
    • 54-pcs 5x1mm
    • 40-pcs 6x2mm
    • 30-pcs 8x2mm
    • 20-pcs 10x2mm
    • 10-pcs 12x3mm
    • 5-pcs 20x2mm
  • 500-pc
    • 100-pcs 8x2mm
    • 100-pcs 6x2mm
    • 100-pcs 5x2mm
    • 100-pcs 4x2mm
    • 100-pcs 3x2mm

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
VSKIZ via Amazon has Select Small Round Magnets Sets on sale for $8.99. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter TattyBear & community member kiran536 for finding this deal.

Available:
  • 259-pc
    • 100-pcs 3x1mm
    • 54-pcs 5x1mm
    • 40-pcs 6x2mm
    • 30-pcs 8x2mm
    • 20-pcs 10x2mm
    • 10-pcs 12x3mm
    • 5-pcs 20x2mm
  • 500-pc
    • 100-pcs 8x2mm
    • 100-pcs 6x2mm
    • 100-pcs 5x2mm
    • 100-pcs 4x2mm
    • 100-pcs 3x2mm

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Community Voting

Deal Score
+92
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Top Comments

slicksac
530 Posts
172 Reputation
Keep these far far far away from small children.
darkNiGHTS
2459 Posts
1187 Reputation
The 500 set is 23.6 cm3 of magnets whereas the 259 pieces is only 16.72 cm3. I had Claude.ai do the math for me.
GergH
8 Posts
14 Reputation
I asked Copilot...
To determine which deal offers better value, we can compare the total volume of the magnets in each set. This will give us a rough estimate of the amount of magnetic material you're getting. Here's the volume of each magnet, calculated as π×r2×h\pi \times r^2 \times h, where rr is the radius and hh is the height:
259-piece Set


100 pcs 3x1mm: π×(1.52)×1×100=706.86 mm3\pi \times (1.5^2) \times 1 \times 100 = 706.86 \, \text{mm}^3
54 pcs 5x1mm: π×(2.52)×1×54=1,062.52 mm3\pi \times (2.5^2) \times 1 \times 54 = 1,062.52 \, \text{mm}^3
40 pcs 6x2mm: π×(32)×2×40=2,261.95 mm3\pi \times (3^2) \times 2 \times 40 = 2,261.95 \, \text{mm}^3
30 pcs 8x2mm: π×(42)×2×30=3,015.93 mm3\pi \times (4^2) \times 2 \times 30 = 3,015.93 \, \text{mm}^3
20 pcs 10x2mm: π×(52)×2×20=3,141.59 mm3\pi \times (5^2) \times 2 \times 20 = 3,141.59 \, \text{mm}^3
10 pcs 12x3mm: π×(62)×3×10=3,393.80 mm3\pi \times (6^2) \times 3 \times 10 = 3,393.80 \, \text{mm}^3
5 pcs 20x2mm: π×(102)×2×5=3,141.59 mm3\pi \times (10^2) \times 2 \times 5 = 3,141.59 \, \text{mm}^3
Total Volume for 259-piece Set:

706.86+1,062.52+2,261.95+3,015.93+3,141.59+3,393.80+3,141.59=16,724.24 mm3706.86 + 1,062.52 + 2,261.95 + 3,015.93 + 3,141.59 + 3,393.80 + 3,141.59 = 16,724.24 \, \text{mm}^3
500-piece Set


100 pcs 8x2mm: π×(42)×2×100=10,053.10 mm3\pi \times (4^2) \times 2 \times 100 = 10,053.10 \, \text{mm}^3
100 pcs 6x2mm: π×(32)×2×100=5,654.87 mm3\pi \times (3^2) \times 2 \times 100 = 5,654.87 \, \text{mm}^3
100 pcs 5x2mm: π×(2.52)×2×100=3,926.99 mm3\pi \times (2.5^2) \times 2 \times 100 = 3,926.99 \, \text{mm}^3
100 pcs 4x2mm: π×(22)×2×100=2,513.27 mm3\pi \times (2^2) \times 2 \times 100 = 2,513.27 \, \text{mm}^3
100 pcs 3x2mm: π×(1.52)×2×100=1,413.72 mm3\pi \times (1.5^2) \times 2 \times 100 = 1,413.72 \, \text{mm}^3
Total Volume for 500-piece Set:

10,053.10+5,654.87+3,926.99+2,513.27+1,413.72=23,561.95 mm310,053.10 + 5,654.87 + 3,926.99 + 2,513.27 + 1,413.72 = 23,561.95 \, \text{mm}^3
Conclusion

The 500-piece set provides a greater total volume of magnetic material (23,561.95 mm³) compared to the 259-piece set (16,724.24 mm³). Thus, the 500-piece set offers a better deal in terms of the amount of magnetic material you're getting.
If you need any further analysis or have other questions, feel free to ask!

58 Comments

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Mar 14, 2025 03:35 PM
96 Posts
Joined Dec 2016
kiran536Mar 14, 2025 03:35 PM
96 Posts
500 pack is also 8.99
Mar 14, 2025 03:44 PM
2,370 Posts
Joined Jan 2024
WolfTheCatMar 14, 2025 03:44 PM
2,370 Posts

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Quote from kiran536 :
500 pack is also 8.99
Anyone want to celebrate pi day by calculating the total volume of the two deals and comparing them?

I don't.
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Mar 14, 2025 04:25 PM
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CyanFaucet1941Mar 14, 2025 04:25 PM
8 Posts

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Seems like a pretty good deal, though I find for my 3D printing projects i prefer an 8mmx3mm, the 2mm thick never seem quite strong enough
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Mar 14, 2025 04:55 PM
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darkNiGHTS
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Mar 14, 2025 04:55 PM
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Quote from WolfTheCat :
Anyone want to celebrate pi day by calculating the total volume of the two deals and comparing them?

I don't.
The 500 set is 23.6 cm3 of magnets whereas the 259 pieces is only 16.72 cm3. I had Claude.ai do the math for me.
5
1
Mar 14, 2025 04:58 PM
530 Posts
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slicksacMar 14, 2025 04:58 PM
530 Posts

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Keep these far far far away from small children.
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Mar 14, 2025 04:58 PM
112 Posts
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YazarsMar 14, 2025 04:58 PM
112 Posts

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Obligatory reminder to keep small magnets like this away from small children who may be tempted to swallow them
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Mar 14, 2025 05:05 PM
1,397 Posts
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smoker68xMar 14, 2025 05:05 PM
1,397 Posts

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Keep away from small children and pets!
Last edited by smoker68x March 14, 2025 at 11:08 AM.
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Mar 14, 2025 05:22 PM
389 Posts
Joined May 2007
xchricMar 14, 2025 05:22 PM
389 Posts
Quote from kiran536 :
500 pack is also 8.99
Thank you. Grabbed the 500 pack.
1
Mar 14, 2025 05:41 PM
1,038 Posts
Joined May 2007
techxMar 14, 2025 05:41 PM
1,038 Posts
Quote from CyanFaucet1941 :
Seems like a pretty good deal, though I find for my 3D printing projects i prefer an 8mmx3mm, the 2mm thick never seem quite strong enough
Helpful info thanks, what glue do you use to secure them to your prints?
Mar 14, 2025 05:52 PM
8 Posts
Joined Nov 2017
GergHMar 14, 2025 05:52 PM
8 Posts

Our community has rated this post as helpful. If you agree, why not thank GergH

I asked Copilot...
To determine which deal offers better value, we can compare the total volume of the magnets in each set. This will give us a rough estimate of the amount of magnetic material you're getting. Here's the volume of each magnet, calculated as π×r2×h\pi \times r^2 \times h, where rr is the radius and hh is the height:
259-piece Set
  1. 100 pcs 3x1mm: π×(1.52)×1×100=706.86 mm3\pi \times (1.5^2) \times 1 \times 100 = 706.86 \, \text{mm}^3
  2. 54 pcs 5x1mm: π×(2.52)×1×54=1,062.52 mm3\pi \times (2.5^2) \times 1 \times 54 = 1,062.52 \, \text{mm}^3
  3. 40 pcs 6x2mm: π×(32)×2×40=2,261.95 mm3\pi \times (3^2) \times 2 \times 40 = 2,261.95 \, \text{mm}^3
  4. 30 pcs 8x2mm: π×(42)×2×30=3,015.93 mm3\pi \times (4^2) \times 2 \times 30 = 3,015.93 \, \text{mm}^3
  5. 20 pcs 10x2mm: π×(52)×2×20=3,141.59 mm3\pi \times (5^2) \times 2 \times 20 = 3,141.59 \, \text{mm}^3
  6. 10 pcs 12x3mm: π×(62)×3×10=3,393.80 mm3\pi \times (6^2) \times 3 \times 10 = 3,393.80 \, \text{mm}^3
  7. 5 pcs 20x2mm: π×(102)×2×5=3,141.59 mm3\pi \times (10^2) \times 2 \times 5 = 3,141.59 \, \text{mm}^3
Total Volume for 259-piece Set:

706.86+1,062.52+2,261.95+3,015.93+3,141.59+3,393.80+3,141.59=16,724.24 mm3706.86 + 1,062.52 + 2,261.95 + 3,015.93 + 3,141.59 + 3,393.80 + 3,141.59 = 16,724.24 \, \text{mm}^3
500-piece Set
  1. 100 pcs 8x2mm: π×(42)×2×100=10,053.10 mm3\pi \times (4^2) \times 2 \times 100 = 10,053.10 \, \text{mm}^3
  2. 100 pcs 6x2mm: π×(32)×2×100=5,654.87 mm3\pi \times (3^2) \times 2 \times 100 = 5,654.87 \, \text{mm}^3
  3. 100 pcs 5x2mm: π×(2.52)×2×100=3,926.99 mm3\pi \times (2.5^2) \times 2 \times 100 = 3,926.99 \, \text{mm}^3
  4. 100 pcs 4x2mm: π×(22)×2×100=2,513.27 mm3\pi \times (2^2) \times 2 \times 100 = 2,513.27 \, \text{mm}^3
  5. 100 pcs 3x2mm: π×(1.52)×2×100=1,413.72 mm3\pi \times (1.5^2) \times 2 \times 100 = 1,413.72 \, \text{mm}^3
Total Volume for 500-piece Set:

10,053.10+5,654.87+3,926.99+2,513.27+1,413.72=23,561.95 mm310,053.10 + 5,654.87 + 3,926.99 + 2,513.27 + 1,413.72 = 23,561.95 \, \text{mm}^3
Conclusion

The 500-piece set provides a greater total volume of magnetic material (23,561.95 mm³) compared to the 259-piece set (16,724.24 mm³). Thus, the 500-piece set offers a better deal in terms of the amount of magnetic material you're getting.
If you need any further analysis or have other questions, feel free to ask!
4
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2
Pro
Mar 14, 2025 05:57 PM
3,857 Posts
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SumDuud
Pro
Mar 14, 2025 05:57 PM
3,857 Posts
would be nice if the 500 set had a few bigger sizes in it, Guess I'm in for 1 of each.
Pro
Mar 14, 2025 06:00 PM
2,281 Posts
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Cartier
Pro
Mar 14, 2025 06:00 PM
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90% of the people that get these are going to say 'Wow! I did not think they would be so small'
1
2
Mar 14, 2025 06:03 PM
3,140 Posts
Joined Dec 2003
lilbuddyMar 14, 2025 06:03 PM
3,140 Posts
bought both for fridge magnets for 3d prints. thanks.
Mar 14, 2025 06:07 PM
25 Posts
Joined Dec 2018
eveeveMar 14, 2025 06:07 PM
25 Posts
Quote from GergH :
I asked Copilot... To determine which deal offers better value, we can compare the total volume of the magnets in each set. This will give us a rough estimate of the amount of magnetic material you're getting. Here's the volume of each magnet, calculated as π×r2×h\pi \times r^2 \times h, where rr is the radius and hh is the height:259-piece Set
  1. 100 pcs 3x1mm: π×(1.52)×1×100=706.86 mm3\pi \times (1.5^2) \times 1 \times 100 = 706.86 \, \text{mm}^3
  2. 54 pcs 5x1mm: π×(2.52)×1×54=1,062.52 mm3\pi \times (2.5^2) \times 1 \times 54 = 1,062.52 \, \text{mm}^3
  3. 40 pcs 6x2mm: π×(32)×2×40=2,261.95 mm3\pi \times (3^2) \times 2 \times 40 = 2,261.95 \, \text{mm}^3
  4. 30 pcs 8x2mm: π×(42)×2×30=3,015.93 mm3\pi \times (4^2) \times 2 \times 30 = 3,015.93 \, \text{mm}^3
  5. 20 pcs 10x2mm: π×(52)×2×20=3,141.59 mm3\pi \times (5^2) \times 2 \times 20 = 3,141.59 \, \text{mm}^3
  6. 10 pcs 12x3mm: π×(62)×3×10=3,393.80 mm3\pi \times (6^2) \times 3 \times 10 = 3,393.80 \, \text{mm}^3
  7. 5 pcs 20x2mm: π×(102)×2×5=3,141.59 mm3\pi \times (10^2) \times 2 \times 5 = 3,141.59 \, \text{mm}^3
Total Volume for 259-piece Set:706.86+1,062.52+2,261.95+3,015.93+3,141.59+3,393.80+3,141.59=16,724.24 mm3706.86 + 1,062.52 + 2,261.95 + 3,015.93 + 3,141.59 + 3,393.80 + 3,141.59 = 16,724.24 \, \text{mm}^3500-piece Set
  1. 100 pcs 8x2mm: π×(42)×2×100=10,053.10 mm3\pi \times (4^2) \times 2 \times 100 = 10,053.10 \, \text{mm}^3
  2. 100 pcs 6x2mm: π×(32)×2×100=5,654.87 mm3\pi \times (3^2) \times 2 \times 100 = 5,654.87 \, \text{mm}^3
  3. 100 pcs 5x2mm: π×(2.52)×2×100=3,926.99 mm3\pi \times (2.5^2) \times 2 \times 100 = 3,926.99 \, \text{mm}^3
  4. 100 pcs 4x2mm: π×(22)×2×100=2,513.27 mm3\pi \times (2^2) \times 2 \times 100 = 2,513.27 \, \text{mm}^3
  5. 100 pcs 3x2mm: π×(1.52)×2×100=1,413.72 mm3\pi \times (1.5^2) \times 2 \times 100 = 1,413.72 \, \text{mm}^3
Total Volume for 500-piece Set:10,053.10+5,654.87+3,926.99+2,513.27+1,413.72=23,561.95 mm310,053.10 + 5,654.87 + 3,926.99 + 2,513.27 + 1,413.72 = 23,561.95 \, \text{mm}^3ConclusionThe 500-piece set provides a greater total volume of magnetic material (23,561.95 mm³) compared to the 259-piece set (16,724.24 mm³). Thus, the 500-piece set offers a better deal in terms of the amount of magnetic material you're getting.If you need any further analysis or have other questions, feel free to ask!
😁😁😁thank you
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Mar 14, 2025 06:15 PM
528 Posts
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mustangponyMar 14, 2025 06:15 PM
528 Posts
Perfect for 3D projects and just magnetizing any sticky note or reminder lol

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