The Adjustable Drink Holder from AdirMed provides a convenient way to always have your drink at hand. Whether it is a water bottle, for a cup of coffee, or a thermos, this cup holder is convenient and easy to use. It’s Convenient! It clips on most walkers, wheelchairs, transport chairs, and bed rails. It ideally mounts onto a 1″ tube frame, but if your frame is smaller you can use the 2 included adhesive pads to widen the diameter. The cup holder is very easy to assemble by an elderly person, using only a screwdriver. It’s lightweight and adjustable! This universal holder, which should be one of your basic accessories, is very compact and lightweight weighing less than half a pound. The holder can be set to any angle preventing spills. The holder’s grip adjusts to any sized beverage from 2.35″to 3.85″ in diameter. Best of all, it folds down when not in use, allowing you to navigate your wheelchair or stroller through narrow spaces.