A classic bestseller from Doc's Naturals line, the Heavy Vein vibe combines a thick, deeply satisfying shape with excitingly lifelike details and super-powered vibration.Tapered at the tip, the Heavy inserts smoothly, swelling quickly into a hefty shaft complete with raised veins and ridges mimicking the real thing. Ideal for adding penetration to oral sex, this vibe has no balls or base to get in the way- that said, it should be used with caution during anal penetration. A twist of the Heavy Vein's ribbed base activates and varies graduating intensities of steady vibration- the supple material over-top a form core transmits stimulation perfectly. In phthalate free PVC plus hygienic ABS plastic, this vibe cleans easily and thoroughly using warm soapy water or a good toy care fluid/foam. Compatible with water and silicone based lubricants. Requires 2 AA batteries (sold separately). Not recommended for use in water.