Black Jack Stroker BJ Pump. Bigger is better! Super powerful robotic sucking and stroking action! All purpose pump has a form fitting vertical stroking textured sleeve, powerful vibrations, incredible vacuum sucking action, and a high grade Silicone vacuum sleeve. Battery pack controls the stroking and vibration speeds, while the quick release suction bulb controls the vacuum seal. Multiple speed. Standard pump bulb with quick release valve. Safe and pure for body and pleasure. Made using phthalate free, non-toxic materials: Thermoplastic Elastomers sleeve, ABS plastic cylinder, controller, handle, Pump measures 6.5 inches long by 2.5 inches wide. Bulk weight: 21 ounces. Vibrating sex toy requires 4 C batteries, not included. Do not leave batteries in the vibrator between uses. Always clean before and after use. Category: For Men, Pumps, Vibrating. Black Jack Stroker is a registered trademark for California Exotic Novelties. Sex toys and sexual wellness. 16.