The Nipple Bulb is a gentle little suction device for enhancing and raising your nipples. Just apply to the nipple and squeeze for light comfortable suction. To use the 4 erection O rings, slip one ring on to the vacuum tube before suction begins, then slide off tube on to the erect nipple.Length: 3.25 InchesWashing: Hot soapy water and toy cleanerColour: PurpleFlexibility: FirmFor Who: FemaleFeatures: 4 Erection RingsMaterial: PlasticBrand: California ExoticPower: n/aSize: 3.25 Inches