Material: zinc alloy + ABSSize: 19cm x 15cmNstruction for usage:Step1， Using the foil cutter to remove the foil on the bottle corkStep2， Lift up the tooth-handle of the opener to make the screw up to the highest position to let it match the cork.Step3， Grip the handle with one hand to squeezes the bottle neck， making the black screw comes out of the metal axisStep4， Press down the tooth-handle to make the drill fully into the corkStep5， Bring up the tooth-handle until making the cork into the screw up to the highest position then press it down to make the cord come off from the bottle automatically.