The Zolo range gives a fresh and funky look to one of the oldest activities known to man.There are seven Zolo Cups, each with a shaped, nodule inner chamber for the most intense stimulation. The Zolo Cups feature an ergonomically designed outer case that contours to the hand for a better controlled grip and Zolo Cups proprietary, real feel material is soft and warms to the touch for unique sensations that are even better than the real thing. This model is the original real feel pleasure cup. There is also a control hole at the bottom for adjusting desired tightness level