Unbelievable!!!!. I am enjoying the ass pounding sensations that this product delivers. One of the best investments I've made to date for the E-Stim. It would be nice to have a bigger base to keep it from being pulled in and I would truely love to see one longer and thicker. The larger toy looses its contact once my ass has been streched in preparation for some full on anal activities. All in all though, this is a must have!