Dr. Joel Kaplan 10-Function Prostate Massager & Ring from California Exotics. Intensely powerful ergonomically curved prostate massager with enhancing ring. 10 functions of vibration, pulsation and escalation. Stimulation and support in one. Pliable and durable Silicone. Plug-in jack. Silicone (probe) ABS (controller) ABS with Silver Plating (decor). 2 AAA Batteries Required (Not Included). 3â   x 1.5â  /7.5 cm x 3.75 cm (probe). 1.5â  /3.75 cm (diameter ring).