Description This product is a multipurpose bike water bottle holder, which is made of durable rubber and ABS material, with good texture, safe and practical. Easy to install and use, it can be easily applied to your bike. It is a very practical accessory that will meet your needs well. Features -Color:Black, Green -Material:ABS, rubber -Size:21.00X9.50X10.50cm/8.25X3.73X4.13in Suitable pipe diameter: 2.2-4.5cm Suitable water bottle: 4-8.5cm in diameter - Silicone protection, holding the water bottle in place and not falling off. - Can be used to hold 4-8.5cm diameter water bottle or cup, such as, soda can, mineral water bottle, energy drink, sports kettle, and etc. - 360 degree rotation design, angle adjustable to fit for different bike handlebar. - Rotary knob installation, no need for tools, just use your hand to fix onto the bike handlebar. - With fine workmanship, simple and very practical in use, easily win your favors. Silicone protection, holding the water bottle in place and not falling off. Can be used to hold 4-8.5cm diameter water bottle or cup, such as, soda can, mineral water bottle, energy drink, sports kettle, and etc. 360 degree rotation design, angle adjustable to fit for different bike handlebar. Rotary knob installation, no need for tools, just use your hand to fix onto the bike handlebar. With fine workmanship, simple and very practical in use, easily win your favors.