1. The bicycle bottle cage is suitable for all bicycles with bottle cage screw holes, and can be used for road, mountain, hybrid, touring and electric bicycles. Even if you are far away, you can stay hydrated and you wont feel thirsty. 2. Bicycle bottle cages fit most standard size water bottles, cups and beverage bottles.??? 3. The bicycle bottle cage is only suitable for the seat tube or tilt tube installed on the bicycle frame. 4. High quality PC material, light weight, durable. There is no need to worry about it falling during your ride. The smooth surfaces of the bicycle bottle holder will keep your bike secure. 5. Easy to install and remove