This high quality pump uses quick and efficient vacuum suction to help firm up and increase the size of your breasts and vulva, along with their sensitivity. The cups are designed with a silky smooth, comfortable silicone seal, that prevents air or moisture from entering. Use it no longer then 20-30 minutes for both breasts and/or vulva, and only pump to a comfortable feel. This kit contains 1 breast cup, 1 vulva cup and a 2 F1-motor powerful pump with 5 sucking modes and 8 licking modes.