Features: Premium Material: This crank hat is made of aluminum alloy, offering high strength, corrosion resistance, sturdiness, and durability. Features anti-rust and colorfast properties, lightweight and long-lasting. Distribute the Pressure: This crank hat helps distribute the pressure of the nut over the secured part, reducing the risk of damage. Precision machining ensures a perfect fit for the crank and provides reliable fixation. Great Decoration: Available in multiple colors to suit individual preferences. The vibrant finish adds a stylish touch to your bicycle. Easy to Install: Lightweight design allows for simple installation and use. Compatible with most mountain bikes with hollow shafts. Range: A practical accessory for bike chainwheels, designed to secure the crankset and crank of the chainwheel. Ideal for cycling enthusiasts. Specifications: Name: One-piece hollow crank cover screw Material: Aluminum alloy Net Weight: Approximately 8g Color: Gold Features: High-strength aluminum alloy, CNC machined, anodized surface, fine craftsmanship, laser engraved, complete specifications, multi-color options Model: M20 (2 x 1.2 x 2.8 cm) Note: Due to variations in lighting and screen settings, the actual item color may differ slightly from the image. Includes: 9 x Handle cover screw