Feel the excitement of penetration again and again with this self penetrating, vibrating butt plug"! This new andunique concept takes anal pleasure to a whole new level! The secret" of this exhilarating butt plug lies inside its verysmart construction. a hidden tube contains a bar that shift up and down during your movement(s) causing extra analstimulation, like you're getting penetrated over and over again! As an extra feature the rechargeable butt plug is equippedwith a super-strong motor, 7 vibration modes and it revs up to 10.000 rpm. this black beauty is ipx5-waterproof andmade of smooth, phthalate-free medical-grade silicone. it stands 14.3cm (5.7") tall and has an insertable length of11cm (4.33") with a maximum girth of 4.2cm (1.66"). the li-ion battery charges in 1-1.5 hours giving a full 60minutes of unbridled passionate playtime!siliconefeaturing An internal stimulation bar that shifts with your movementssonoself penetrating