Feathers: Integrated elastic strap, can be flexibly installed without screws, has a wide range of applications Convenient to Carry: Bike water bottle mount is compact and you can put it in your bag and take it wherever you want. The lightweight design enhances the convenience to carry to your desired place. Convenient to Install: Bike water bottle mount doesn't take a lot of time to install and disassemble. You can easily select an installation position as required. Extensive Use: Bottle cage mounting base is suitable for most bikes such as road bikes, fixed gear bikes, mountain bikes, downhill bikes, track bikes, scooters, and so on. Colour:White / black Material:Silicone Package Contents: 1 * Bicycle Bottle Holder Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.