Feature: Sealed and waterproof rubber ring is equipped with 18/20MM rubber ring, compatible with common brands, and the integrated hollow tooth plate has an aperture of 21-23MM and can be installed Three-dimensional pattern dust cover Three-dimensional texture, fine workmanship, strong texture Integrated production of high-strength aluminum alloy material, and resistance, easy to CNC precision cutting integrated molding, fine and smooth workmanship, uniform incision Multi-color options Select mainstream colors to show off your personality, and the three-dimensional totem shows off your personality Specification: Product name: crank dust cover Color: black, red, colorful Weight: 9g Package Included: Crank dust cover*1 Rubber ring*2 Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. 【Waterproof and Seal Design】Equipped with a sealed and waterproof rubber ring that effectively prevents dust, dirt, and water from entering the crankset and bottom bracket, optimal performance and durability. Compatible with common brands and can be easily installed with its integrated hollow tooth plate with a 21-23mm aperture. 【Stylish Three-Dimensional Pattern】Featuring a three-dimensional texture with exquisite craftsmanship, this crankset dust cover displays a strong and unique design. The fine workmanship of the three-dimensional totem adds a touch of personality to your bike. 【High-Strength Aluminum Alloy Material】Crafted from high-strength aluminum alloy material, this dust-proof cover offers excellent resistance to oxidation, , and rust. The CNC precision cutting and integrated molding guarantee a smooth and uniform finish. 【Multiple Color Choices】Available in black, red, and colorful options, this crankset dust cover allows you to select the mainstream color that matches your bike and showcases your individuality. 【Complete Package】The package includes crank dust cover and two rubber rings, providing you with all the necessary compnts for a hassle-free installation. With a weight of only 9g, it adds minimal additional weight to your bike.