Feature●Chain set: 1 x bicycle chain (9-speed bicycle chains, 116 links), 4 pairs of chain locks, 1 x chain hook●Premium Material The chain is made of extra polished stainless steel, and the special electroplating process with silver makes the chain rust-proof, corrosion-resistant, wear-resistant and durable. Smooth lubrication: surface polishing, inner oiling, more durable and durable than conventional chains.●Easy to install and use: take the desired chain length, remove the outer chain pieces at both ends, put the two magic buckles on both ends of the chain from the inside and outside, and put the chain shafts of the magic buckles on each other with both hands. Pull vigorously to both sides and fix them. Thanks to the chain connections included in the set, the bicycle chain can be easily and quickly assembled.●Wide range of applications: 16 links 9-speed. Suitable for bikes, road bikes, city bikes, mountain bikes and road bikes●Tight and flexible: special tempered steels, repeated forging, the bicycle chains have an extra hardened stainless steel, highly rigid, reinforced structure, the connection is very dense and firm, which can withstand a high pedaling force.Description Wide application: suitable for 9-speed bicycle chains. It is suitable for most mountain bikes, road bikes, folding bikes, road bikes, etc. Efficient and labour-saving, make your journey safer, more comfortable and free.