This stretchy silicone sleeve slips over the most sensitive part of your shaft to stimulate it with intense vibration! Apply a little water-based lubricant to create a slippery orifice to slide in and out of. The multitude of nubs within will massage the head of your penis while you experiment with 3 speeds of buzzing and 7 patterns of powerful pulsation. The grooved texture on the outside makes it easy to keep a firm grip on, even during vigorous use. This rechargeable tool is even waterproof for wet, hot fun in the shower. Clean after use with mild soap or toy cleaner and avoid use with silicone lubricants.Measurements: 5.5 inches in total length, 2.5 inches insertable length, 1.7 inches in diameterandnbsp;(Circumference 5.340)Material:andnbsp;SiliconeColor:andnbsp;BlackNote:andnbsp;Charges via USB