【Adjustable Buckle】The strap opening is self-adjusting, and the universal adapter allows you to install the water bottle cage anywhere on your bike, which is flexible and convenient. 【Easy to Install】No need to punch holes in the bike rack and will not scratch your bike, you can install or remove this water bottle retaining clip anytime, anywhere. 【Wide Range of Applications】You can also install it on a suitable size electric bicycle or other places. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.