External size: 2310*1190*510/700mm Inside size: 1950*900mm Backrest: 0-65 Knee rest: 0-45 Hi-low: 510-700mm Left right: 0-10 1. Newly desing of decent ABS plastic head&foot board, rails. With easily operated membraneswitch. 4 PCS 150mm central control system castors. 2. This bed adopt luxurious membrane switch, easily operated and pressed comfortably. With the reset button to make the bed be flat from any position soon. Also a lock button with indicator light to show work state.