Tenga Air Cushion Cup adopt an air cushion structure that does not use the elasticity of a sponge or urethane. This Tenga Air Cushion Cup utilizes air pressure that fills up the cushion chambers in between the sleeve and the plastic outer cup, mimicking the missionary sexual position fantasy. Instead of using sponge or urethane material to fill up space, the air chambers naturally apply even pressure around the inner sleeve, creating a sensational stimulation to the head and shaft of the penis, delivering your most inten