Handmade Mountain Bike Keychain / Aluminum Rear Derailer Pulley

Handmade Mountain Bike Keychains: I make these keychains myself using strong rings and chains, and real used mountain bike parts that I chop up and prepare. Check out my other keychains, all assembled in the USA! Note: Many of these mountain bike parts have hard edges, not all are suitable for in-pocket use. Also: These are real used mountain bike parts, they aren't as polished as a brand new part would be. This keychain is made from an aluminum rear derailer pulley. It's a 10 tooth pulley, that was an aftermarket upgrade for a Shimano XT rear derailer. The pulley looks white in the photo but it is a matte grey color.