For easy application of standard wine corks into Bordeaux style wine bottles. Separate the top half of the hand corker (plunger) from the corker body. Place a cork into the hole at the top of the corker body and push down into the corker body as far as possible with your thumb. Place the plunger back on top of the loaded corker body and place onto the neck of the wine bottle. Holding the body of the corker with one hand, use your other hand to firmly depress the plunger driving the cork into the bottle neck.