Color: As shown Name: Universal Chain Stabilizer Material: Nylon plus fiber + plastic Weight: Approximately 45.3 g Compatibility: Designed for bicycles with a 1x drive system and one-piece sprockets Specifications: 31.834.9 mm (1.251.37 inches) installation, E-type mount Effective chain protection: Helps prevent the chain from falling off or skipping during use. Provides reliable chain retention and reduces chain interference while riding. Essential bicycle accessory: Ideal for single-piece cassette setups, promoting smoother drivetrain performance. Suitable for bikes with 1x drive systems and one-piece sprockets. A practical addition to enhance bicycle functionality. Easy installation: No need to remove the crank. Simply install and adjust using a wrench. High-quality materials: Constructed from durable nylon and reinforced plastic for lightweight strength. Resistant to wear and deformation. Durable finish: Black surface coating resists fading and discoloration. The sleek black design is dirt-resistant and complements various bicycle frame colors. Notes: - Actual color may vary slightly due to differences in screen display. - For sizing guidance, please refer to product specifications. - Supports mixed orders of items, colors, and sizes. Package includes: 1 x Bicycle Chain Guide