4-Pieces Bike Crankset Protective Sleeve Cover Bicycles Crank Protector Silicone Arm Boot Dustproof Waterproof Crank Arm Cover

Make of silicone material, wear-resistant and impact resistant, ensuring long-term use., Provide effective protections to prevent the crank from being hit, scratched, and damaged, and extend the lifespans of the crank., It can protect the interior of the crank from erosions by dust, mud, and water., Sleeve designs, simple and easy to install, without the need for additional tools or technical support., 1 set of 4 pieces of crank protector, universally used for left and right chainring crank sets, suitable for most crank sets, Protective cover of the bicycle chainring crank is made of highly wear‑resistant silicone, which is durable.