Features: *Material: Made from plastic materials. *Easy installation: With tool-free installation, simply press and manually install the protector, offering convenient usage. Once the crank is locked, there will be no slack, ensuring a secure fit. *Enhanced performance: By safeguarding your bike's bottom bracket, our protector helps maintain optimal performance and efficiency. It effectively blocks dirt, dust, and debris from entering the axle, ensuring a smooth and seamless cycling experience. *Versatile compatibility: Our bottom bracket protector is compatible with a wide range of bicycles. *Affordable and cost-effective: Investing in our bottom bracket protector provides a cost-effective solution to shield your bike's axle from damage. Specifications: *Product Name:2PCS BB Bottom Bracket Protection Cap *Material:Plastic *Size:Inner diameter 24mm(As shown) *Color:Black Package Content: 2*Bottom Bracket Protection Cap Note: 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. Features: Secure Fit 2PCS BB Bottom Bracket Protection Cap for Bike Crank Locking Material: light weight, good strength and well temperature resistance, good impact resistance Appearance and performance: automatic cutting, smooth edge, fit most of the road bicycles, delicate texture. Compatibility: smooth surface and exquisite workmanship, fit most of the bicycles. Easy Installation: Brand new and high quality, easy to install.