Ultraproof via Amazon also has 2-Pack Trianium Screen Protectors for iPhone 7/6s/6 for $0.91. Price reflected at checkout. Shipping is free with Prime or if you spend $49 or more.
Editor's Notes & Price Research
iPhone 7 Fiber Glass Screen protector - $0.91 ( note : also work with the iphone 6/6s)
iphone 7 plus fiber glass screen protector - $0.96 ( note : also work eith iphone 6 plus & 6s plus)