Clever Design: Specially designed for the "bottle mouth buckle" of the water bottle,the water bottle can be inverted and locked in the "bottle mouth buckle" to make the water bottle more stable during riding and prevent falling Multifunctional: Bike Water Bottle Holder can be suitable for most road bicycles and mountain bicycles, and can be installed in many positions of the bicycle. The material is light and durable, and it is the best choice for riding Fast Stable Installation: Use accessories to install the bottle cage on the bicycle, you can easily use screws to fix the bottle cage. Disassembly takes only a few seconds Colour:Black Material:PA66 type:A: Middle tube style Package Contents: 1 x Bicycle Bottle Holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.