Bed Size: 2120*970*500 Material: 1)Bed frame and mattress base are made of Powder Coated Steel. 2) Detachable Bed head/footboard are ABS Plastic 3) Two Pieces of Aluminum Alloy side rails. 4) Control by Cranks Functions: The angle of the back section:0-80�?�° Standard Accessory: 1)Two-sectional S/S Drip Stand 2) Piece Plastic Cranks 3)Two Pieces of Aluminum Alloy side rails. 4)Four Pieces of 125mm diameter Individual Locking Wheels