Features1CNC PROCESSING: CNC accurate machining technology and one piece molding design are adopted to ensure the solidity of the structure. The anodized coloring process gives it a unique metallic frosted appearance. 2EROSION RESISTANT: The surface is specially anodized to effectively resist rain erosion and daily wear and tear, and is not easy to get rusty or rot, making it ideal for long distance riding and outdoor activities. 3MULTIFUNCTIONAL EXPANSION: The adapter is not only limited to mounting a water bottle cage, but also allows you to easily carry a tail bag, small pump and other cycling essentials to maximize the use of space. 4LIGHTWEIGHT AND STRONG: aluminum alloy is used to achieve a balance between lightweight and strength. Even when the dual cup holders are full loaded, it can still carry them securely, without fear of bumpy roads. 5PLUG AND PLAY: The simple installation interface design makes the connection between the converter and the saddle system easy and fast, no need for complicated tools.SpecificationItem Type: Bike Bottle Holder AdapterMaterial: Aluminum AlloyPackage List1 x Bike Bottle Holder Adapter2 x Hook And Loop Strip1 x Hex Wrench8 x Screw8 x Ring2 x Seat Clamp Plate