This "Amazon's Choice" 10-piece stackable glass prep bowl set [amazon.com]
is on sale for $15.87
, matching its lowest price ever. Free shipping with Prime or $25 purchase.
This glass bowl set gets a 4.6 stars out of 5 average review score on Amazon. These are the type of bowls you'll see used on Food Network cooking shows for ingredient prep.
Note: Amazon product page says "Usually ships within 1 to 2 months
" so if you need these bowls yesterday, this isn't the deal you're looking for.
The SD effect is likely to happen. I doubt they will stay at this price for long.
EDIT: Looks like Walmart is now matching Amazon's price [walmart.com]
, for store pickup only. Shipping not available. If you need it now, and a nearby Walmart store stocks it, this is your best bet.