2 cranks hospital bed specifications : 1. stainless steel bed frame and base structure , 2. paiten batten bed base board . 3.ABS head & end board ,aluminium alloy guardrail . 4. folded plywood over bed table . 5. folded plastic hand rockers , can be pushed into the bedbody 6.4" no sound castors ,each of them with brake ,can be locked easily and keep bodystable.