ITEM NAME:Road Bike Sprocket Protection Chain Wheel Bike Crank Ring Mud Protective Cover U Specification: Type: bike sprocket protection Color: black Material: plastic Size: 8.5cm Weight: 51g Mdoel: G5QD0-44 Package includesï ¼Å¡1pc bike sprocket protection note: 1.Please allow 1-3mm error due to manual measurement..Type: bike sprocket protection. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Material: plastic.