Adjustable size from 48 to 75 mm: The minimum bottle diameter is 48 mm, the maximum is 75 mm. Please check the diameter of your water bottle before purchasing. Thanks to the adjustable knob, this bicycle bottle holder fits standard and smaller water bottles (not large bottles). This gives you quick and easy access to your water bottle while riding. High-quality material: Our bottle holder is made of durable polycarbonate. It is extremely robust and impact-resistant and can withstand strong vibrations from bicycles and motorcycles. The robust construction ensures a long service life even in harsh conditions. Easy installation: Installing this bicycle bottle holder is a breeze. No drilling is required. Thanks to the included mounting kit, it can be quickly and easily mounted and disassembled. The entire process is quick and easy and does not require any additional tools. Practical design: The design is user-friendly. You can easily insert and remove the bottle while riding. The black color fits elegantly with bicycle cup holders. Wide Application: Since the mounting direction of the handlebar clamp is adjustable, this motorcycle bottle holder can be mounted almost anywhere on the bike: handlebar, frame (front tube, down tube, seat tube, etc.). Also suitable for motorcycles, scooters, road bikes, ATVs, UTVs, mountain bikes, wheelchairs, strollers, exercise bikes, treadmills and more.