High Quality Material:The cup holder Made of high quality durable ABS plastic and metal, very strong. Designed for storing cups, cans and bottles. Small Size:Size (Bottom Diameter XH): 2.76*5.63"/7cm*14cm, cup holder diameter is about 70mm~80mm, adjustable clamp diameter is about 0.59"-1.57" / 1 .5 cm - 4 cm (Note: the holder is not suitable for hand bars or tubes with a diameter greater than 4 cm). Rotated 360:The cup holder bike can be rotated 360 degrees. It can be mounted on the handlebar, under the saddle, down tube, fork, front tube. Easy to Install:The cup holder is easy to install, you can prepare it without tools. (Note: Do not screw the bracket too far left or the bracket head will fall off and you will have to screw it right to screw it in.) Wide Applications:The cup holder is perfect for various baby strollers , umbrella strollers, pram, trolley, cradle, children's tricycle, bicycle, etc