1.Size (Bottom Dia. x H): 2.76*5.51 /7cm*14cm, the bottle holder diameter is about 70mm~80mm. Its arms can wrap around the bottle and provide a secure and firm hold so you dont have to worry about it falling out. 2.360Rotation: Bike Bottle holder can be installed on handlebar, down tube, fork, front pipe. Anyway,any angle the cup holder can be turned upwards. You dont need to worry about drink spilled. 3.Widely Use: Perfect for mountain bike, bicycle, baby strollers, wheelchairs etc. Compatible with most pram, such as Chicco, Britax, Peg Perego, City Mini and so on. The Water Bottle Cages can be use to put milk bottle,water bottle, drinks,juice andso on. 4.Advanced Environment Friendly Material: The bottle cages made of high quality ABS plastic and metal accessories, very durable. It is perfect bike accessories and wont make the painting of the bicycle worn out. 5.Easy Installation: No tool needed Just put the cup holder in the place you want, than tighten the screws. Name: Bicycle Cup Holder Material: ABS plastic and metal Colour: Black Dimensions (bottom diameter x H): 2.76 * 5.51 / 7cm * 14cm Cup holder diameter: about 7cm~8cm Adjustable clip size: approx. 0.59-1.57/1.5cm-4cm Easy to install: no tools required Simply place the cup holder where you want it and tighten the screws.