Features: Easy Installation: Our Bicycle Guard Rack Protector can be easily installed with a single fixed hole. It provides reliable protection for yourrear derailleurin case of anytripping accidents. Premium Material: Our bicycle guard rack protector is made of high-quality iron that is anti-rust and durable. It is installed with a single hole for easy installation and long-lasting protection. Unique Design: Our Bicycle Guard Rack Protector features anarch angle designthat makes it resistant to deformation even under strong impact force. Its unique shape conforms to most bikes providing effective protection for the derailleur to prevent derailment. Universal Size: Our Bicycle Guard Rack Protector is suitable for bicycles road bikes andfolding bikesof all sizes. It provides effective protection for the rear derailleur preventing distortion or displacement during riding to ensure safe riding. Customer Service: Customer satisfaction is our first priority and we provide satisfactory service for all products. Specification: Material: Iron Color: Black Notes: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. includes: 1* Cycling Mech Rear Derailleur Protector "