Nipple Play Vacuum Twist Suckers Black. Includes 2 fully adjustable multi-use suckers. Unique vacuum pressure design; simply twist to adjust suction. Incredible suction for increased sensitivity. Disassembles for easy cleaning. Safe and pure for body and pleasure made using phthalate free materials Acrylonitrile Stryrene AS cylinder, ABS plastic cap, plunger, Silicone seal. 4 inches by 1.5 inches. Bulk weight 3.6oz.