Features: Ensure the longevities of your bikes gear system with our bicycles rear derailleur protector, designs to shielding your derailleur from impacts and abrasions. Craft from aluminum alloy, this rear derailleur protector is light weight yet strong, providing reliable protections without adding unnecessary weight. Great for cycling enthusiasts, commuters, and also mountain bikers who demand wonderful performances and protections for their bicycles. Perfect for use in rough terrains, city environment, or during transportation, ensuring your bikes component remain intact and functional. Easy to install, this essential accessory enhances your bikes durability, making it a must having for anyone look to maintain their bikes performances and value. Specifications: Materials: Aluminum Alloy Color: Black/Redness Package Weight: approx.30g Length: approx.83.2mm/3.27in (More Size Detail, Please See Picture.) Package Includes: 1Pc Bike Rear Derailleur Guard note: Please allow 1-3mm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!