This item is a bottle holder for bikes. Its secure and firm wrap around arm design keeps your bottle stable and stay in place even in . The bottle holder can be easily mounted on the handlebar, seatpost and other poles and tubes of the bike. Perfect replacement for you old storage basket. Feature - - Material: Aluminium alloy, plastic. - Size: About 7x7x13 - Adjustable bottle cage, for both vertical and horizontal install available. - Double screws for tightness adjustment and fixed the rack well. - Fit for 15- tube install and telescopic deisgn for 55-78mm kettle or bottle holding. - Easy to mount the holder on the handlebar, seatpost and other poles and tubes of the bike. - Ultra lightweight. Adds no extra weight to your bicycle, perfect for cycling travel. - Suitable for most types of bikes, including mountain bike, road bike, and folding bike and other bikes without a storage basket. Package list: 1 x Bike Cup Holders