Powerful suction adds size. Quik speed vibration. You control the pressure until desired effect. EZ squeeze handle with pressure release valve. Easy to measure size. Phthalates free materials Soft Base and Hose Silicone, Clear chamber Polystyrene, Gauge, Pump, Remote and Bullet ABS plastic. Size total length 11.75 inches, Cylinder diameter 2.5 to 2.6 inches at base, Insertable length 7.875 inches, vibrating bullet requires 2 AA batteries. Not included.