Brand Toopre ori Material: full quality steel Net weight: about 152g Applicable: single speed, 6/718/79/10/11 speed Application 1: Various bicycle chains Feature: *100% new high quality all steel material upgrade * Double layer plating, CNC process, more durable *High-precision CNC tooth pattern, higher precision, no , damage to the chain *Applicable to all kinds of bicycle chains package: 1* bicycle chain tool