Bicycle Water Bottle Cage Adapter Rotating Aluminum Alloy Bicycle Mount Dual Water Bottle Adapter for Handlebar Water Bottle Specification: Item Type: Dual Water Bottle Cage Adapter Material: Aluminum Alloy > Product color: as shown in the photos Product size: approx. 78 x 82 mm / 3.1 x 3.2 inch Double bracket spacing: approx. 50 mm / 2.0 inch Applies to: 21-31.8mm / 0.8-1.3 in diameter pipes Swivel: 360 degree rotation Package List: 1 x Water Bottle Cage Mount Adapter 2 x Water Bottle Holder water bottle Function: 1. High Quality Material The bicycle bottle cage adapter is made of aluminum alloy, with smooth surface, corrosion resistance, high strength, solid and durable, preventing deformation and damage. 2. Double Bottle Holder Multifunctional adapter, with two water bottle holders, can hold gas bottles or two water bottle baskets. 3. Rotatable The bracket can be rotated 360 degrees to suit the installation location, easy to install and remove. 4. Easy to install Commonly used for seat tubes, bend handlebars, straight handlebars, can be directly locked to the seatpost to hang two bottle cages. 5. Suitable for Suitable for handlebars with a diameter of 21-31.8mm / 0.8-1.3 inch, suitable for various types of bicycles, including mountain bikes, road bikes and folding bikes.