Double lip. Digital display for pressure control = safety and reliability. Automatic on/off function : the pump stops when the required pressure is reached. The display then shows 200 kg. Automatic pressure regulation : below 160 kg, the pump switches on and draws vacuum again until 200 kg is reached. Double-click ON/OFF button to release pressure and tab for easy removal. For smooth and rough surfaces. Carrying case and protective cover included. CE certified.