Features: Made of high-quality carbon fiber material, durable and practical. Corrosion and aging resistance. Effectively preventing the chain from falling off the-frame and damaging the-surface of the-frame. Assembled in the front shift position, easy to assemble. Suitable for road bicycles. During high-speed cycling, using this chain catcher can protect your bottom brackets from chain suction. Safe and reliable: Professional manufacturing, strict quality control, and long service life. Specifications: Material: Carbon Fiber Size: as Shown in the Picture Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Bike Chain Stabilizer