Rechargeable Dual Kegel Exerciser from Cal Exotics. Phthalate Free, Waterproof, Rechargeable, Vibrates. Materials Silicone, ABS Plastic Power Source USB Rechargeable cable included Features Phthalate Free, Waterproof, Rechargeable, Vibrates Measurements 3.5" x 1.25" / 9cm x 3.25cm (Kegel) Max Run Time 40 minutes Max Charging Time 45 minutes. 90 Day Warranty. Travel lock feature with manual in box.