Product Name: Bicycle Water Bottle Rack Product size: 18 * 9.2cm/7.08 * 3.62 inches Product color: as shown in the figure Product material: silicone Product features: 1. It is made of high-quality silicone material and has strong tensile strength, which can meet the requirements of most bicycle and stroller frames. You can put it almost anywhere on your bike without needing to punch holes. The bottle cage can be quickly installed on the bicycle frame, handlebar, and seat tube. 3. The mounting base is designed scientifically, with high friction, and good belt tensile performance. It is not easy to fall off even when encountering strong vibration. 4.The bicycle bottle cage mounting base is made of harmless green materials, allowing you to enjoy green and life while traveling in low carbon. 5.It can be installed very well, just ask them to disassemble it and install the rack. matters needing attention: It is well known that different computers display different colors, and the colors of actual items may be slightly different from the following images. If you find it difficult to choose a size, you can always contact me and I will give you some suggestions, but for your reference only. Shipping includes: 1 bicycle water bottle rack