Welcome to our store! 1. DURABLE ALUMINUM ALLOY: Made of aluminum alloy, the most suitable material for bicycle water bottle holders, solid and durable. 2. EASY INSTALLATION: Only two screws need to be attached, it is very easy to install it with the wrench. 3. Stay hydrated during the bike ride: The bike water bottle can be used quickly and easily when needed. Very suitable for road bikes, mountain bikes, hybrid bikes, touring bikes and electric bikes. Multiple support points, so more stable. 4. Multifunctional: Very suitable for mountain bikes, bicycles, strollers, wheelchairs. Suitable for mounting on handlebars, seat posts, etc., as well as motorcycles, fishing umbrellas, etc. (tube diameter range from 18-32 mm). It can hold smaller bottles and cups within 73.5 mm standard. 5. Durable quality matches your bike: High-quality ABS material, heat-treated, strong and light. Powder-coated surface and high-roll treatment match your shiny bike color. Very easy to wipe and clean. The weight is only 42g/1.5oz. Name: Water bottle holder Material: ABS Size: As shown Tube diameter range: 18-32mm Holds water bottle: Within 73.5 mm inner diameter Color: Black, Blue 1* Bottle holder 1*Tool 2*Screw 1* Tube clamp Satisfaction Guarantee: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory customer service.