Features: Premium silicone construction provides superior durability and flexibility, solving the common issue of plastic chain protectors cracking while ensuring long lasting for bikes and commuters. Featuring a tool installation and quick on design, this full coverage shield prevents mud, debris, and chain slap noise during intense rides or city cycling. Designed for frequent riders, adventurers, and commuters seeking chain to extend drivetrain across diverse terrains. Enhances pedaling during night rides through quiet neighborhoods or chains from abrasive on and rainy roads. Choose from multiple colors to personalize your bike's aesthetics while maintaining optimal chain through weather resistant silicone engineering. Specifications: Component: Silicone Color: Black Size: Approx. 24x4.1cm/9.45x1.61in, 23.2x5.2cm/9.13x2.05in, 23x4.2cm/9.06x1.65in, 23.4x5cm/9.21x1.97in Quantity: 4pcs set Package Includes: 4pcs set x Bike Silicone Chain Protective Cover note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.