Fits most wheelchairs with a distance of 16-20" between two armrests. And fits wheelchair tube dia :0.85"-0.9". Transform your wheelchair into a convenient mobile dining table, makes it easy to eat anywhere comfortable and has helped regain some independence again. Stay organized and spill-free, two cup indents, and a pencil well to prevent rolling off and keep your items secure while supporting your arms and posture. Durable ABS plastic steel, not easy or break with long-term use, handy feature that allows to transport things from one place to another much more easily Easy to install and remove, 4 holes in the back of the tray allow and convenient assembly. Can be rotate the install bracket to make it insert the tray table. Perfect for elderly, disabled and limited mobility.