Sturdy, no-wobble tray is an inexpensive alternative to traditional bedside tables. More stable than a TV tray and less awkward than balancing a tray on your lap, TrayMate(r) fits snugly on almost any sofa or chair arm. The molded plastic tray top is divided into three sections. It measures 13in x 9-1/2in x 9in (33 x 24 x 23cm). An adapter is available that fits the TrayMate(r) on a wheelchair or bed rail. With the adapter, the tray swivels to the side for getting in and out of the wheelchair or bed.