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 than 20-30 minutes for both breasts. Product diameter 5,2 cm Inner diameter 3,8 cm Insertable length 3,5 cm Splashproof Yes Phthalate-free Yes Materials Acrylic