Description: Made of good quality material, good finish and solid, lightweight and durable. For bicycles without the water bottle brace-on. Suitable for water bottle cage, allows to attach water bottle cages to bicycle frame. Able to fit most water bottle holder. It will be a absolute nice choice for both road and MTB cycling friends. Specification: Material: Aluminum Alloy Size: Approx. 8.2x4.4cm / 3.23x1.73inch Package Includes: 1 Piece Water Bottle Cage Adapter