The cup holder can be manually adjusted at the bottom. So it can hold water bottles of max 2 inches bottom diameter and maximum 2.8 inches top diameter.
Aluminum alloy construction, lightweight, durable. The smooth surfaces of the bicycle bottle holder will keep your bike secure.
Suitable for handlebars of 0.9-2.3inch diameter. Two screws make the cup holder firmly fixed on the bar, and will not shake or fall during cycling.
Can be installed on guard and bicycle pole.
For most ATVs, motorcycles, bikes, strollers, walkers, wheelchairs, scooters, etc.