Optimum Series Rechargeable EZ Penis Pump Kit from California Exotic Novelties. Maximize your pleasure tool with the Optimum Series Rechargeable EZ Pump Kit, a sleek automatic pump with Ultra Soft dual silicone ring. Increase endurance, improve stamina and amplify your rod with powerful suction at the touch of a button. The easy pump has easy touch controls and a quick air release button for customized pumping. Enhance your exercise by slipping into the Ultra Soft dual enhancer ring, a super plush silicone cock ring for sensational enhancement. While the thick open-end sleeve and tight, nubbed chamber give you sinful stroking pleasure with or without the pump. Never settle for less when it comes to the size of your pleasure with the Optimum Series.The cylindrical pump and thick, durable sleeve are designed to create the perfect seal and powerful suction at the touch of a button. Once you have reached your peak pump, use the quick air release to decrease suction or release seal. When used regularly, this powerful pumper can increase stamina, enhance overall size and amplify sensation. Recharge the premium pump in 2 hours with the provided USB charging cable to enjoy 3 hours of passionate suction. To track progress, use the incremental measurement marks on the cylinder shaft. The premium sleeve fits into most standard pumps, but can be used independently for a passionate stroking experience. The premium Thermoplastic Rubber TPR is a body safe, unscented and phthalate free to keep you most sensitive spots, happy and healthy. Enjoy easy clean up with this maintenance free stimulator sleeve, simply wash with soap and warm water before and after each use. Use ample lubricant for easy insertion. Specifications Color Black. Materials Silicone, ABS Plastic, Polystyrene. Power source USB Rechargeable, included. Features Phthalate free, Rechargeable. Allergens N/A. 1 year warranty. Maximum run time 180 minutes. Maximum charging time 120 minutes. Measurements 8 inches by 2.25 inches Cylinder. 2.75 inches by 1.25 inches Donut. 2.75 inches by 2 inches overall ring. 1 inch ring diameter. Bulk weight 12.1 ounces. Package 16 ounces. Package 3 inches by 6.5 inches by 13.5 inches.