Beautiful and textural, this powerful little G-spot massager is made of soft, supple, superior quality Crystalessence material with multi-speed stimulation. It operates on 2 AA size batteries, not included. The diameter of the shaft is 1.25 inches and 3.5 inches long. The oval shaped base has wonderful little nubbies to stimulate and tease. Shane's World Campus G is a great companion! Waterproof for play in and out of the water.