Offers 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. Measures 6.5 in. long, 5.5 in. insertable, 1.4 in. at widest insertable width. Requires 1 AAA battery, not included.