Specification:2000x1000/1200/1500x450/700mm Integrated stamping base are steel made with epoxy. Polyester powder coated & baked finish, resistant to chipping and scratching. Bed head/foot board and bed frame are made of wood. Function: Height adjustable from 450 to 700mm; Back-rest lifting angle is 0-80; Knee-rest lifting angle is 0-40; Standard accessory: Import motors-------------------------3 pcs 5'silent wheels-------------------------4 purchase