Features: Quality Material: The bottle cage mount is made of quality silicone/rubber materials, which has strong stretchability and can meet most bicycle and stroller frame. Safe and Firm: The surfaces-of bottle cage mounting seat-base friction is large, and the belt has good tensile performance, and it is not easy to fall off even if it encounter strong vibrations. Environmentally Friendly: The bike bottle cage mounting base is made of non-toxic and harmless materials, allowing you to enjoy a green-and healthy life while traveling with low-carbons. Easy to Use: This bike water bottle cage holder base non-hole mounting clip can hold a variety of bottles very steady, and easy to take, and it can not scratch water bottle and bike frame. Wide Applications: Designed for bike without bottle cage mounting hole. You can place it virtually anywhere on your bike. The bottle cage can be quickly installed on the bicycle frame, handlebar, and seat-tube. Specifications: Material: Rubber Color: For The Picture Shows Package Weight: approx.60g Style Options: 6 Style are Available for Shown in the Picture. Size: approx.180x90mm/7.08x3.54in (More Size Detail, Please See Photo.) Package Includes: 1Pc x Bike Bottle Cage Mounting Base note: Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Thanks!