The Temptasia Beginners Nipple Pumping System is an exciting way to expand your erotic play. Tease and arouse as you use this easy squeeze ball pump to stimulate and enlarge your nipples. The crystal-clear acrylic cylinders allow for easy viewing. making this system great for either solo play or with a partner. The acrylic cylinders of the Beginners Nipple Pumping System are designed for those who are new to nipple enhancement. With non-porous silicone tubing and acrylic cylinders. this system is body safe and easy to keep clean.