Color: As shown Name: Universal Chain Stabilizer Material: Nylon plus fiber + plastic Weight: Approximately 45.3 g Compatible: Fits bicycles with 1x drive system for one-piece sprockets Specifications: 31.834.9 mm / 1.251.37 inch installation, E-type installation Effective chain protection: The chain guide helps prevent the chain from falling off and reduces chain interference during riding. Provides reliable chain retention and helps prevent chain drop and chain skipping. Essential bicycle accessory: Designed for use with single-piece flywheels to promote smoother drivetrain performance. Ideal for bikes with 1x drive systems and one-piece sprockets. A practical addition to enhance bicycle functionality. Easy to install: No need to remove the crankset. Simply adjust using a wrench for quick and convenient setup. High-quality material: Constructed from durable, high-strength nylon and reinforced plastic. Lightweight, wear-resistant, and resistant to deformation. Durable finish: Features a black surface that resists fading and staining. The sleek, minimalist design blends well with various bike frame colors and maintains a clean appearance over time. Notes: - Actual color may vary slightly due to differences in screen display. - For sizing guidance, refer to product specifications or contact customer support for assistance (for reference only). - Supports mixed orders of items, colors, and sizes. Package includes: 1 x Bicycle Chain Guide