10 functions of passion! The waterproof Emerald Studs G-Spot is made of glittery soft jelly. The insertable length of the vibe is 7in with a diameter of 1.75in. The tip of the vibe is curved for G-spot stimulation. 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!