These beautiful and raw copper discs blanks are deburred and come with a mill finish, but may contain some minor imperfections due to the manufacturing process. In most cases, they will have a vinyl protective barrier on one side depending on availability at the time of purchase. These blanks are 1/8" thick and come in 1/2", 3/4", 1", 1 1/8", 1 1/4" and 1 1/2" diameter options. Holes are available to be added using the link below.
https://boppermetalsupply.com/products/hole-punching-service
Copper is a fantastic metal to work with, it is as easy to work as silver and much cheaper.