Features 1、Latest models: the latest models in 2022. You can install the cup holder directly on the bicycle frame and rotate the bottle holder adapter 90 degrees to install it on the bicycle handlebar or seatpost. This is both practical and practical and corresponds to the purchase of several different bottle holders. 2、No fear of impacts: the bottle holder is made of high-quality nylon plastic, durable, lightweight, does not wear the bicycle frame, the base can be adjusted, regardless of the size of the water cup, a suitable position can be adjusted so you don't have to worry about the small water cup falling off or shaking when riding. 3、With adapter: this bicycle bottle cage comes with a bottle holder adapter. It can be rotated 360 degrees to adjust the appropriate position. The two-layer screw lock design is more stable and not easy to slide. Can also be used on bicycles without bottle holder holes! 4、Professional accessory design: suitable for a bottle up to 8 cm in diameter, it is very strong and does not deform or break due to heavy impacts. The more user-friendly design allows you to quickly access the kettle or cup, store enough water while driving and enjoy a pleasant ride. With metal knobs, it is firm and durable for quick size adjustment. (Most of the other products on the market are plastic knobs, which are easy to fall off, unstable, and easy to damage the threads) 5、Widely used: suitable for any bike with or without bottle holder. You can easily complete the installation within 5 minutes. The bicycle bottle cage can be installed on the handlebar, down tube, front fork and front tube. Very suitable for mountain bikes, motorcycles, pushchairs, etc. Specification Product Name: Bicycle Bottle Holder Material: nylon plastic Colour: Black Size: 16.3*14*6cm Suitable pipe diameter: 20-32mm Suitable bottle diameter: within 8cm Package List Bottle Holder*1<br />Auxiliary Bracket*1<br />L Screwdriver*1 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.