Mirro 92180A Polished Aluminum  10-PSI Pressure Cooker Cookware, 8-Quart, Silver The pressure cooker is made of rust-proof, heavy-gauge aluminum Features pressure monitoring device in handle, sure-locking lid system, and overpressure release valve Dishwasher safe Cuts cooking time up to two thirds Limited 10 years warranty for the pressure cookers and limited 1 year warranty for the replacement parts