Package Includes- The kit includes 1 set 6/7/8 speed chain, 1pcs bike link plier with hook, 1pcs chain breaker and 6 pairs of bicycle chain buckle, they are efficient, accurate matching and labor-saving. High-quality Material- Our bike chains are made of special forging steel which is repeated forged and strict controlled of materials to ensure the strength. The are full plating silver to anti-rust, high cost performance, anti-corrosion, wear-resistant and durable. Double Bridge Design- Double X bridge design of the bike chain kit improves the tensile, torsional strength of the chain and have variable speed fluency improvement. Easy to Install- The bike chain is easy to install, you can determine the length of your chain according to the original chain, cut out the length you want with a chain cutter, and install the chain with a chain hook. Wide Application- The bike chain kit is suitable for 6-speed, 7-speed, 8-speed road and mountain bikes. It is suitable for shimano and SRAM variable-speed systems.