Steel

95% new, returned by a previous customer for buying the wrong size, does not affect normal use, low price clearance inventory BUCKLOS bike cassette with 8/9/10/11/12 speed, minimum sprocket is 11T, other sprockets are between 25-28-32-34-40-50-52T, compatible with Shimano SRAM and Hg Hub drive, high strength steel construction, wear-resistant and durable, nickel-plated surface design,Anti-corrosion and anti-rust; the toothed plates are closely spaced, so that the chain is closer to the toothed plate to ensure smooth and noiseless shifting; the surface coating and small hole design are easy to clean and install, and the gear is easy to disassemble and replace, so that the gear can be shifted smoothly on roads, climbing, downhill, mountains, stone roads and other environments. BUCKLOS Bike C.