This service tray has a tilting mechanism. On wooden tray, there are metal barriers inorder to prevent stuff (Bottles, glass, etc.) following down from its surface. Special aluminum profiles for height adjustment mechanism. Special gas spring mechanism enables adjusting height of service tray unless using joystick, "C" leg design provides confortable usage in combination with bedside cabinet for narrow patient rooms. Electrostatic powder coating, Set of 4 x 50mm Furniture Castor Wheels. TECHNICAL SPECIFICATIONS—Width: 745 mm, Depth: 390 mm, Height adjustment: 810 - 1120 mm.