Large Size Intelligent Heating Male Masturbation Cup Automatic Piston Thrusting Retractable 401 Times of Piston Motion per Minute Relaxing Tools for Adult

Best device I've used so far, and I've used all of the top brands 100-250+ models. This one is way, way better.Inner matetial fantastically soft, up and down piston is inside and does not push device away. Warming works. Can be used while flaccid too, which is awesome with party favors. Strongly recommend!