Thin copper strips perfect for using with mosaics and many other crafts, and various other applications including electrical and DIY projects. These strips are 10 mil (.010" or 30 gauge) and 20 mil (.020" thick or 24 gauge) Copper Alloy 110 (99.9% CU) Smooth Commercial Finish/Annealed (Dead Soft). Please don't hesitate to contact us via email at info@basiccopper.com or try our "live chat" feature for immediate assistance!