Description: 【Lightweight】: Crafted with focus on minimal weight, this extension mount ensures that your bicycle remains agile and unencumbered, providing an effortless riding experience 【Universal 】: Designed to fit most saddle types, this extension mount offers simple and convenient installation, making it a versatile addition to any cyclist's gear 【Easy Installation】: The bike water bottle cage adapter is engineered for quick attachment to your bicycle saddle, allowing you to spend more time riding and less time setting up 【Sturdy Construction】: Built with PC materials, this extension mount is designed to withstand the rigors of cycling, ensuring long term performance even in challenging conditions 【Enhanced Cycling Experience】: By providing an accessible location for your water bottle, this extension mount enhances convenience during rides, making it an essential accessory for mountain biking enthusiasts   Specification: Material: PC Size Chart: Length 105mm/4.13inch Package Includes: 1x Bike Water Bottle Cage Adapter Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!