8 Variable Shaft Rotation Patterns, 8 Levels of Intensity for both Shaft and Arouser, 8 Unique Arouser Functions, All Independently Controlled. Over 750 Patterns. 100 % Waterproof. Made of high quality AquaGel™ material, Synchronized Non-Jamming Beads, Textured jelly surface, New removable Easy-load Battery Pack, Multiple Rotation Functions and Speeds. 4 AA Batteries. Approx. 7.5 inches long - 5 inces insertable X 1.75 inches wide - 5 inches around