Welcome to our store！</br> 1、DURABLE ALUMINUM ALLOY: Made from aluminum alloy, the most suitable material for bike bottle holders, solid and durable. 2、EASY INSTALLATION: Only two screws need to be fastened, it could be very easy to install it with the key. 3、Stay hydrated while riding: The bike water bottle can be used quickly and easily when needed. Very suitable for road, mountain, hybrid, touring and electric bicycles. Multi-point support, so more stable. 4、Multi-function: very suitable for mountain bikes, bicycles, strollers, wheelchairs. Suitable for installation on handlebars, seatposts, etc., as well as motorcycles, fishing umbrellas, etc. (pipe diameter range from 18-32mm). It can accommodate smaller bottles and cups within the 73.5MM standard. 5、Durable quality matches your bicycle: High quality ABS material, heat-treated, strong and lightweight. The powder coating surface treatment and high roller polishing treatment match your shiny bicycle paint. Very easy to wipe and clean. The weight is only 42g/1.5oz. Name: Water Cup Holder Material: ABS Size: As shown Pipe diameter range: 18-32mm Accommodating kettle: Within 73.5MM inner diameter Color: Black, Blue 1* Cup holder 1*Tool 2*Screw 1* Pipe clamp Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>