This Saber G Butt Plug is made out of the pliable Marble-Jel. You will love the flexibility of this material. The sensuously tapered butt plug is 4in long with diameters increasing to 1 at the base. The multi-speed Micro Stimulator is wireless, self-contained and inserts easily into the butt plug. There are six batteries included, three for immediate use, and three to spare! Try the Micro-Saber G Butt Plug without the micro stimulator first, and then add the stimulator... What a treat!