The Master Series Prostatic Play Quest Ribbed Silicone Prostate Vibe offers you simultaneous internal and external stimulation! Enjoy powerful vibration against your perineum while your prostate is targeted for a deep thrum. The ribbed texture of the flexible shaft will make insertion an intense experience of its own, as each bulb pops into you. The premium, phthalate-free silicone is easy to clean, durable, and completely body safe making this a toy that will last you through many orgasms. Measurements: 6.5 inches in total length, 5.5 inches insertable, 1.4 inches at widest insertable width. Material: Silicone, ABS. Requires 1-AAA battery, not included.