4 levels of suction powerIncludes cockring & extra gasketPhthalate freeRoHS compliantMaterials: Sleeve ? TPR Control ? ABS Tube ? PCSize: Pump size: Length ? 12.5 Diameter ? 3 Circumference ? 8.25 Ring size ? 0.5 (Internal diameter of opening)Rechargeable Charging time = 150 mins. Working time = 120 mins.