1, Material: Constructed from and safe aluminum alloy, bike bottle mount adapter is hard, reliable, wear-, safe for children and pets, and not easy to damage. 2,Firmly Attached: The bottle cage adapter is more firmly attached than traditional hooks. Even on bumpy roads or turns, the bottle not drop, ensuring your equipment and driving safety. 3,Convenient to Carry: Bike water bottle mount is compact and you can put it in your bag and take it wherever you want. The design enhances the convenience to carry to your desired place. 4,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. 5,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. The bottle cage adapter attaches more securely. Even on bumpy roads or tight turns, the bottle not fall off. Colour:black Material:plastic Size:18 x 9 x 5cm Package Contents: 1 x Bicycle Water Bottle Cage Holder 3 x Straps 1 x Wrench 2 x Screws 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.