Butts Up 3 functions for Prostate and testicular stimulation. It has a Removeable bullet and is made from Body-safe silicone. Water-resistant, Phthalates free, RoHS compliant The Massager is made from Silicone, Bullet is made from ABS Size Width 10 inch, Insertable length 8 inch Usage time 1hr. Requires 3 LR44, AG13 batteries includedLength: 10 InchesWashing: Hot soapy water and toy cleanerInsertable: 5 to 6 inchesDiameter: 1.4 InchesCircumference: 4.4 InchesColour: BlackFlexibility: SlightController: Built InFor Who: MaleFeatures: Phthalate FreeMaterial: SiliconeBrand: Nasswalk ToysPower: (Included)Size: 10 Inches