The Cal Exotic Booty Call Booty Rider is a soft and smooth vibrating silicone probe. Nubby base for added stimulation. 10 powerful functions of vibration, pulsation, and escalation. Push button control with LED light. Hold for 3 seconds to turn off. Silicone (probe) ABS with Silver Plating (dcor ring) ABS with PU Cote (cap). 4.25 x 1.5/10.75 cm x 3.75 cm. Uses 1 AAA battery, not included.