Size Matters Breast Cupping SystemCreate temporary engorgement of the breast area with a hand pumped cupping system! Each of the two large cups has a rubber ring around the base to create a strong seal when you place it on your skin. Attach the green end of the tubing to the green tips of the cups and the white end of the tubing to the hand pump. Pull the pump trigger to create suction, working towards your comfort level. The tubing can be removed and your flesh will stay caught in