Commander XL Electric Pump is easy to use, easy to clean and delivers powerful suction. The 10-inch tube is designed to accommodate larger penises and the removable, rechargeable power source makes cleaning a breeze and charging discreet. Press and hold the gray button until the desired level of suction is reached. To release the suction, simply press the red quick release button. 3 velvety soft silicone sleeves in varying sizes accompany the pump to ensure a comfortable fit. To charge, plug in the charger to the back of the pump power source and connect USB to a wall outlet. Available in Clear and Blue.High vacuum electric pump3 sleeve sizes for a snug fitExtra large chamberWaterproofPhthalates freeRoHS compliantMaterials: silicone, AS, ABS, PVCPump size: Length - 13.375, Diameter - 2.75, Circumference - 8.75Three sleeve sizes: (internal diameter of opening), Small - 1.125, Medium - 1.375, Large - 1.5Voltage - 3.2VRechargeableCharging time: Up to 1 hr.Use time: 1 hr.