Temptasia Nipple Pumping Cylinders Set of Two .75 inch diameter Clear from Blush Novelties. Play. Set of 2 clear cylinders for increased size and engorgement. Compatible with Temptasia Pumps. Not included. Versatile. Detachable for more ways to play. Peace of mind. Made of body safe Acrylic. Contains no fragrances, phthalates or latex. Size .75 inch inner diameter for each Cylinder. Temptasia Nipple Pumping Cylinders are compatible and interchangeable with other Temptasia pumps and accessories. In use with a quality pump, they will bring temporary engorgement and heightened sensitivity to your nipples. The cylinders are crystal clear for easy viewing, plus detachable if you are seeking to hold the suction while you play. These cylinders, .75 inch inner diameter, are a comfortable medium size. Made of body safe acrylic, Temptasia Cylinders are easy to use and easy to clean.