High-quality bicycle bottle cage, firmly hold the bottle, with it, you no longer have to worry about the bottle falling easily. Features: Made of carbon fiber and nylon composite material, it has excellent strength, dimensional stable, durable and scratch resistant. It can hold the bottle firmly, and not easy to drop even when riding on rugged mountain roads. Easy to install, with two stainless steel screws attached, which can be firmly fixed on the bike frame. Fits for bottles about 74mm in diameter. Simple design, easy to take bottle. Lightweight and portable, suitable for all bicycles with bottle cage screw holes. Specifications: Model: Type 1/ Type 2(optional) Color: Black Material: Carbon Fiber and Nylon Composite Item Size: 85 * 79 * 148mm/ 3.3 * 3.1 * 5.8in Item Weight: Type 1: 27g/ 1.0oz Type 2: 53g/ 1.9oz Packing List: 1 * Bottle Holder 2 * Screw