The Pyramid Nipple Amplifier Bulbs are an erotic way to have fuller, more erect nipples. This enlargement system has four graduated O-rings that can be placed over the nipples to keep them firm! Simply slide the ring of the desired size over the open end of the pump before use, place the glass pump over the nipple and squeeze until you reach your perfect size. Then slide the stretchy rubber ring down over your engorged nipple until it reaches the base. Two different sized pumps are included for a customized fit for each size. Dimensions: Pumps are 67mm long, Large pump opening has 153mm inner diameter, Small pump opening has 90mm inch inner diameter, O-rings range from 84mm to 137mm inner diameter Materials: Rings: Silicone
