With adjustable diameter for multiple bottle sizes.Hold your bottle securely, no matter how rough the ride gets.This water bottle cage adjusts to fit a wide range of bottles and hold them more securely.Durable, convenient and light design.Will hold any standard water bottle.Adjustable base fits bottles 6 to 9.5 cm diameterFlexible, heavy-duty polycarbonate constructionColor: BlackMaterial: plasticPackage Include:2 x Water Bottle holder2 x bandage4 x Screws setOnly the above package content, other products are not included.Note: Light 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.