Featuring a rotating inner chamber with a rubber vaginal sleeve that is texturized with numerous sensation elements, and two windows on the sides that let you see all the action! This state of the art wireless masturbation tool boasts an ergonomic hand held design and a user friendly control pad, with one powerful vibration speed and a unique rotation feature that adds a whole new dimension to masturbation. To use, simply apply a little lube and insert your rod into the stimulation chamber. Then turn on the stroker and select your rotation. Then lie back and let the Auto Bater do all the work! Measurements: 10.5 inches in total length, 2 inches in diameter at base. Material: TPE, ABS. Color: Black. Note: Requires (4) AA batteries, not included