360 degree rotation: the bike cup holder can be rotated up to 360 degrees. It can be mounted on the handle bar, under the seat, on the bottom tube, the fork, the front tube, and it can also be used on most prams. Multifunctional: perfect for mountain bikes, bicycles, pushchairs, wheelchairs. Also compatible with most pushchairs such as Chicco, Britax, Peg Perego, City Mini and so on. Size (base diameter x height): 7 cm x 14 cm; the cup holder diameter is about 70 mm to 80 mm. Premium Material: made of high-quality durable ABS plastic and metal parts, very durable. Designed to store cups, cans and bottles. Easy installation: easy to install, you can do it without tools. NOTE 1. The size of the product is measured manually, and there will be an error of 2-3mm due to factors such as different measurement tools and measurement methods. 2. This product is all taken in kind, but due to differences in photography, lighting, color deviation, and personal understanding of color. As a result, there may be some color difference between the actual product and the photo, and the color is subject to the actual product. 3. Please take good care of our products