This bike chain cover is waterproof, wear-resistant and sturdy, which has long service time. This bike chain cover can well protect your crankset and chain from water, scratch and sand and you don't need to worry about spilling oil on your pants when you are riding. It is constructed of plastic material. The length of this bike chain cover is 9.85cm, width is 11.295cm and thick is 3.2cm. This bike chain cover is universal, which is suiable for most types of bikes. Item Name: Bicycle Chain Cover Material: Plastic Features: Waterproof, Anti-scratch, Easy Installation Size Details: 9.85cm x 11.295cm x 3.2cm or 3.88" x 4.45" x 1.26" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bike Chain Cover