1. Features: - Premium Material: This crank hat is made of aluminum alloy material, which has high strength, is corrosion - resistant, sturdy and durable. It has anti - rust, colorfast, lightweight and long - lasting properties. - Distribute the Pressure: This crank hat can distribute the pressure of the nut over the part being secured, reducing the possibility of damage to the part. With a fine design and precise machining, it fits the crank well and offers professional fixation of the crank. - Great Decoration: The mountain bike crank bolt comes in different colors for you to choose from, meeting different needs. The bright color makes it a good decoration for your bikes. - Easy to Install: This bike crank bolt is lightweight, easy to install and use. It fits most mountain bikes with a hollow shaft. - Range: It is a nice accessory for the bike chainwheel. It is used to fix the crankset and crank of the chain wheel, making it a good accessory for cycling enthusiasts. 2. Specifications: - Name: One - piece hollow crank cover screw - Material: Aluminum alloy - Net Weight: About 8g - Color: gold - Features: High - strength aluminum alloy material, CNC turning, surface anodizing, fine workmanship, laser processing, complete specifications, multi - color optional - Model: M20(2*1.2*2.8cm) 3. Notes: Due to the effects of light and shooting angle, the actual color of the item may slightly differ from the color shown on the picture. 4. Includes: 9 * Handle cover screw