ITEM NAME:2pcs Waterproof Bearing Protection Cup Cover for Bike Bicycle Bottom B UPN EIO Descriptio n Description: - 2 Pieces premium bicycle bike medium shaft bearing protection cover. - Waterproof and dustproof - Smooth surface, good hand feeling, corrosion-resistant and wear-resistant - Without use tools, press manually and install it, it is very convenient, after the crank is locked, there will be no slack. - Suitable for crankshaft diameter 24MM. Specifications: Material: Plastic Color: Black Size: about 36.8*25*1.1mm Package Included: 2 * Bearing Protection Covers We offer you what you need! 2pcs Waterproof Bearing Protection Cup Cover for Bike Bicycle Bottom Bracket.Waterproof and dustproof. 2 Bearing Protection Covers. We'd like to settle any problem in a friendly manner. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted.