Premium Material- Ultralight 3K carbon fiber bottle cage is made of high quality carbon fiber, the cost is 10 times higher than plastic products. Humanized Design- Designed with a smooth edge that won't hurt your hands and protect the kettle from scratches. Design with protruding part at the bottom, the bottom prevents the kettle from slipping off. Highest Performance- Has excellent resistance to moisture and heat aging, super durable, lightweight, high temperature, high strength, wear-resistant and corrosion-resistant. Lightweight and Comfortable- For water bottles with a diameter of 70-74 mm. Only 29g, effectively reducing the burden of cyclists. Good ductility and can accommodate larger and smaller diameter water bottles. Sturdy Fit- Works with a variety of bottles, coffee mugs, water bottles, travel mugs and mugs. Suitable for mountain bikes, road bikes, folding bikes, etc. 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