Handmade Mountain Bike Keychain / 21 Tooth Shimano Cassette Cog

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 a segment of a 21 tooth cog that was liberated from a Shimano 9 Speed cassette. It's surface has been scuffed with a small grinding wheel.