ITEM NAME:1pc Bicycle Bottle Holder Adjustable Bike Drink Cup Water Bottle HoldME Features : This is for a brand new bicycle frame-mounted bottle holder with adjustable diameter forseveral bottle sizes. Keep your bottle safe no matter how rough the ride gets. These bottle holders fit a wide range of bottles and keep them more secure. Engineering grade polycarbonate plastic construction for durability. Adjustable base fits bottles 45 to 86mm diameter. Flexible, heavy-duty polycarbonate construction. Specification: Material: plastic Color: black Size: 7.3 x 8.5 x 16.5cm Applicable bottle diameter: 45 to 86mm Package Included: 1 x bike bottle holder Notes: Due to different computer screen, the color of the actual items may slightly different from the listing images. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a message before you give the bad feedback, if the products have some problems. Thanks for your understanding..These bottle holders fit a wide range of bottles and keep them more secure. Keep your bottle safe no matter how rough the ride gets. Material: plastic.