10 functions of passion! The waterproof Emerald Studs Cliterific is made of glittery soft jelly. The insertable length of the penis shaped vibe is 6.5in with a diameter of 1.75in. The base of the shaft has rows of ticklers to tantalize your clit. The base of the vibe has EZ touch controls for scrolling through the 10 levels of vibration and pulsation. Requires two AA size batteries, not included. This is truly a gem!