Features: ? Application - The bike bottle holder Suitable for pipe diameter 19-40mm , It can be install on the frame vertically as well as horizontally. We have also attached extra anti-slid pad to make the clamp more stable ? Multifunctional Bike Cup Holder - The mountain bicycle cup holder can be placed on various places on bike, like handlebars, highway bars, engine guards, or other locations, perfectly fits most baby stroller, pushchair bicycle and umbrella car ? Easy to Use - The adjustable bike water bottle holder with clamp design is easy to install and remove. Just mount in seconds and tools free to hold various bottles to various places, like on handlebar, under seat, down tube, fork or front pipe ? 360 Degree Rotation & Adjustable - With the 360 degree rotating design, the bike bottle cage is easy to adjust to all directions and the screw can be rotated to make it fit your bottle size ------------------------------------------------------------ Specifications: Product material: aluminum alloy; Product size: 55*83*16mm; Product color: Black / Blue / Red / Titanium / Rose Gold Applicable installation pipe diameter: 19-40mm ------------------------------------------------------------ Package List: Package content: 1PCS converter, 2PCS protective gasket, 1PCS screw wrench ------------------------------------------------------------ Notes: 1. Since the product is manually measured, there will be a certain error interval, please understand. 2. Please understand that different light screens and different lights will cause color difference in the product.