NinjaCrafters Aluminum Keychain Blanks (with pre punched hole) 1/2" X 2" 14 Gauge (.063) Pack of 10 For Handstamping, Jewelry Making and Crafting Pure 1100 Food Grade Hypoallergenic Aluminum Solid and Sturdy 14 Gauge (.040) Aluminum Each Bracelet Blank Has Been Deburred and Tumbled Each Piece is 1/2" Wide by 2" Long Excellent For Handstamping and DIY Craft Projects