Color: As shown Name: Universal Chain Stabilizer Material: Nylon plus fiber + plastic Weight: Approximately 45.3 g Compatibility: Fits bikes with 1x drive system for one-piece sprockets Specifications: 31.834.9 mm / 1.251.37 inches installation, E-type installation Effective chain protection: This chain guide helps prevent the chain from falling off and reduces chain interference during riding. It effectively minimizes chain drop and chain skipping. Essential bicycle accessory: Designed for use with single-piece flywheels to promote smoother drivetrain performance. Suitable for bicycles with a 1x drive system and one-piece sprockets. A practical addition for bike owners looking to enhance their ride. Easy to install: No need to disassemble the crank. Simply adjust using a wrench for quick setup. High-quality materials: Constructed from durable nylon composite and plastic for lightweight strength. Resistant to wear and deformation. Fade-resistant finish: Black surface coating resists fading and discoloration. The sleek black design is dirt-resistant and complements bicycles of any color. Notes: 1. Due to variations in monitor displays, actual color may differ slightly from the image shown. 2. If you have questions about sizing, please for guidance. Recommendations are for reference only. 3. Mixed orders of items, colors, and sizes are accepted. Package includes: 1 x Bicycle Chain Guide