1. Easy to Use, This product is a durable and versatile bicycle accessory that allows you to easily access your water bottle while riding. 2. Lightweight and Durable, Made of high-quality aluminum alloy, lightweight but sturdy, providing a secure hold for your water bottle. 3. Versatile Mounting options allow for either a double or single water bottle setup, depending on your hydration needs during rides, ensuring you have enough water for long distances. 4. Easy Installation, Mounting hardware and tools included, easy to install and compatible with most standard bicycle water bottle cages. 5. Essential for Cycling, Suitable for road bikes, mountain bikes, electric bikes, etc., it is an essential accessory for any cyclist. Name: water bottle cage conversion seat Length: A Single water bottle cage extension: 120x90x35 (mm) B Double water bottle cage extension: 120x90x35 (mm) Features: Simple color matching, easy installation, wide compatibility Colour:black Material:Aluminum Alloy<br><br>Package Contents: 1 * water bottle cage extension with Mounting accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.