The Balloon Time Helium Tank makes an excellent addition to any child's birthday party, holiday gathering or other special event. It features a convenient lightweight and portable design that makes it simple to use anytime, anywhere. This helium balloon tank is capable of holding up to 14.9 cubic feet of helium that is compatible with both Mylar and latex style balloons. It will fill approximately fifty 9" latex balloons or twenty-seven 11" latex balloons while retaining a float time of around 5-7 hours. On the other hand, this disposable helium tank will also fill approximately twenty-seven 18" or twenty 20" Mylar style balloons.