Premium material The bottle cages made of high quality ABS plastic (acrylonitrile butadiene styrene) and metal accessories, very durable It is the perfect bicycle accessory and does not wear off the paintwork of the bicycle Gre Gre (Bottom Dia X H): 2 76 * 5 51 "/ 7cm * 14cm, the cup holder diameter is about 70mm ~ 80mm The bottle holder has arms that wrap tightly and securely around the bottle to prevent the bottle from falling out while driving 360 degree rotation The bike cup holder can be rotated 360 degrees It can be mounted on the handlebar, under the seat, down tube, fork, front tube, and it can also be used on most strollers Easy installation No tools required Simply put the cup holder in the desired location and then tighten the screws Versatile use Perfect for mountain bikes, bicycles, strollers, wheelchairs, etc Compatible with most strollers such as Chicco, Britax, Peg Perego, City Mini, etc The water bottle holders can be used to hold milk bottles, water bottles, drinks, juice, etc