ITEM NAME:M18 MTB Bike Crank Cover Screw Cap Aluminum Alloy Crankset Fitting (Black) A#S Product Description Description: M18 Mountain MTB Bike Crank Cover Screw Cap Waterproof Dustproof Aluminum Alloy Crankset Fitting Bicycle Cycling Parts Feature: 1. Aluminum alloy material: Light weight, not easy to rust. Precision and strength far better than the original plastic screws. 2. Dustproof and waterproof: Waterproof penetrates into the bottom bracket. 3. Gorgeous appearance: Multiple craftsmanship creates metallic texture and excellent visual effects. Specification: Body material: Aluminum alloy Color: Red, Black, Gold, Blue Size: 28x28x12mm/1.1x1.1x0.47in Diameter of the screw end: 18mm/0.71in Net weight: 8g Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. Included: 1 X Crank Cover Screw Cap.Included:1 X Crank Cover Screw Cap. Precision and strength far better than the original plastic screws. Body material: Aluminum alloy. Color: Red, Black, Gold, Blue. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.