Rotates, Squirms, and vibrates. Bends to your inner curves. 4.25 inches long before it comes to the clitoral teaser. The diameter at it's widest point is 1.5 inches with a circumference of 4 inches. It has a twisting shaft that can rotate at two speeds and a clitoral stimulator that can pulsate at two different speeds. The total length is 9 inches and it requires 3 AA batteries. <p><b>There have been several of these returned as defective.</b></p>