Features: Made of high-strength plastic, durable and lightweight. Sturdy and durable without deformation. Lightweight one-piece design effectively reduces wind resistance and makes riding easier. The bottom of the bottle cage can be disassembled, which can be pulled left and right, and the left and right positions can be changed according to the habits of the left and right handsIt is truly universal for left and right hands, and it is convenient to take the kettle. The inner diameter of the water bottle holder is 70mm/2.76inch, which is for various cycling water bottles on the market, as well as most cola bottles and mineral water bottles. Special design keeps your water bottle in place. Easy to install, suitable for mountain bikes and road bikes. Specifications: Material: Polycarbonate + glass fiber Color: Dark Black/China Red/Olive Green/Morandi Powder/Milk Tea for Grey Size: Approx. 80x148mm/3.15x5.83inch Inner Diameter: Approx. 70mm/2.76inch Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Water Bottle Cage