These water bottle cage can be rotated 360 degrees. It can be fitted on handle bar, under seat, down tube, fork, front pipe, also can be used on most strollers, wheelchairs, trolleys or walkers. The bike cup holder is made of safe and environmentally friendly materials for extra strength and durability combined with light weight. The slip resistant clamp ensure that bottles can keep steady in the cup holder even on the rough road. Simply professional disign, no tools required for installation and removal. Securely holds your cup or bottle in place and keeps your drinks from spilling or falling off. (Bottom Dia. x H): 2.76*5.51"/7cm*14cm, the cup holder diameter is about 70mm~80mm. Lightweight and portable. Designed for most standard water bottles, easy to mount on your bicycle without tools, suitable for a variety of bicycles, including mountain bikes, folding bikes and any others. Features: Holder can be rotated 360 degrees It can be fitted on handle bar, under seat,can be used on most strollers. Compatible with most baby stroller, such as Chicco, Britax, Peg Perego, City Mini and so on. Lightweight and Simple to install, you can get it ready without any tools. Designed to keep the cup secure and safe from spills. Perfect for mountain bike, bicycle, wheelchairs as well. Designed to fit most coffee cups and water bottles. The clamp of the bottle cage is designed for easy to installation and remove, no tool needed. Mounts in Seconds No Tools Required, can be mounter vertically as well as horizontally. Specifications: -Material: Plastic -Size (Bottom Dia. x H): 2.76*5.51" /7cm*14cm -The cup holder diameter is 7cm~8cm -Adjustable clamp diameter is 0.59"-1.57"/1.5cm-4cm -Color: Black -Weight:106g/pcs -Scope:baby stroller, bike, buggy, wheelchair Attention: -The bracket is Not suitable for any handbars or tubes with a diameter more than 4cm Package includes: 2*Bike Drink Holder