Pumped Nipple Suction Set Transparent from Shots Toys. Feel the stimulation of suction with these Nipple Cups. These suckers can be easily applied and twisted to temporarily increase the size of the nipples. Perfect for use during solo or partner play. Enjoy creating heightened sensitivity and stimulation! Compatible with all types of lubricant. Use for no longer then 20 to 30 minutes for both breasts. Warning: please read product manual before using any type of vacuum pump. Stop using the device immediately if you experience any pain or discomfort. Dimensions package 5.98 inches by 3.58 inches by 2.01 inches. Weight package 4.23 ounces. Product dimensions 4.02 inches by 1.61 inches by 1.61 inches. Product weight 3.07 ounces. Product diameter 1.61 inches. Inner diameter 1.1 inches. Insertable length 1.38 inches. Splashproof. Phthalate free. Materials Acrylic.