Master Series Pyramids Nipple Amplifier Bulbs with O Rings

The Pyramid Nipple Amplifier Bulbs offer an expert method to achieve firmer, fuller nipples. This system includes four graduated O rings designed to maintain firmness by securing over the nipple base. Select the appropriate ring and place it onto the open end of the glass pump, then position the pump over the nipple and gently squeeze until the desired size is reached. Slide the elastic O ring down to the base to maintain the enhanced shape. Two different-sized pumps are provided to accommodate varying nipple sizes. Pumps measure 2.63 inches in length, with large and small openings of 0.53 and 0.35 inches inner diameter respectively. The O rings range from 0.33 to 0.54 inches inner diameter. Made from durable rubber and glass in black. Includes two pumps and eight rings.