Easy InstallationThis wheelchair cup holder with two velcro stickers go around the handle to install horizontally or vertically, which is more convenient for the elderly. It works well with 0.8" to 2" diameter vertical roll bar such as Wheelchair, Walker, ATVs and UTVs .Multi-functional Pockets While you go out for a walk, two small pockets on the surface of the wheelchair cup holder helps you to store cellphones, keys, MP3, sunglasses, small cards and etc.Keep Your Drink Hot/ColdWheelchair cup holder also work as rollator/walker drink holder, which is designed with 4mm foam inside, which provide excellent insulation to keep your drinks cool in summer and warm in winter.CollapsibleThe fabric material of this wheelchair cup holder is collapsible that can fold with the wheelchair without breaking or cracking. It is not necessary to take the wheelchair cup holder off when you fold the wheelchair.Bottle Drawstring At the top of the walker drink holder, the drawstring keeps your cup stable and can shrink freely to fit 12 oz - 32 oz sizes of cups. It will secure your items inside and won't fall off them though you turn it upside down.