Features: Make of aluminium alloy materials, light weight and enduring, with high strength to ensure long terms durability. Installing the bike rear pedal is easy, you simply mount it to the rear axles of your bike and fix it with a locking screw for added stability. Folding designs, allowing them to conveniently folded and stored to saving space. They effectively protect their feet from touching the vehicle wheel, enhancing safety. Nonslip designs ensures that you can stand on the pedals with confidence without worrying about slipping. Specifications: Materials: Aluminum alloy Size option: 10mm (0.39inch)/15mm (0.59inch) Package Includes: 1pair Electric Bicycles Rear Pedal note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.