Quickly and easily fill up balloons with this Balloon Time Small Helium Tank so you can get the party started! The light-weight helium tank allows you to inflate balloons for birthday parties sporting events baby showers and other celebrations wherever they may be. Simply inflate the balloons with the easy-to-use nozzle one to two hours prior to the event for the best results. Balloons will remain afloat for five to seven hours depending on altitude humidity and temperature.