Get unbelievable results with The Stroking Power Pump from Cal Exotics. Endorsed by Dr. Joel Kaplan, this powerful stroker pump features multi-speed vibrations with powerful robotic stroking action and a TPE soft noduled pleasure sleeve for a secure vacuum seal. Features include: a power grip handle, suction bulb with quick release purge valve, and soft form-fitting sleeve. Made from ABS (tube) PVC (bulb) TPE (sleeve). 5.5"x 1.5"/14 cm x 4 cm (sleeve); 2.25"/6 cm (cylinder diameter); 8" x 1.5"/20 cm x 4 cm (cylinder). Requires 4 C batteries (not included).