Features: Against Drop Chain Plannumber: Effectively prevents the chain from falling away on uneven boulevards, ensuring a safe and smooth biking experience. Wide Agreementermeterror: Accommodates various mountain cycle models with 1x operate systems, offering easy installation lacking additional modifications. Permanent Aluminum Substancemail: Produced from thin yet strong aluminum mixture, it resists oxidation and oxidation for long permanent execution. Quiet Cycling Experiencemail: Reduces chain noise and resistance, enhancing a peaceful and pleasant mountain biking journey. Fast Release Mechanismeterror: Features a innovative fast release plan for efficient cleaning and maintenance, saving time and effort. Specifications: Typolyethylenemail: Hose Roll Whirling Joint Package Includes: () Mountain Bike Cylinder Chain Stabilizer 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 difference between different monitors, the picture may not reflect the actual color of the item.