Add helium balloons to your Prom, Homecoming, Wedding, birthday or special event party for a fun and festive touch. This non-toxic, nonflammable, Disposable Helium Tank features an easy-opening valve and filler tube. Tank weighs 12 pounds, holds 15 cubic feet of helium and includes 50 assorted size and color latex balloons and 1 roll of ribbon. Disposable tank contains enough helium to fill 50 nine inch balloons or 27 eleven inch balloons. Latex balloon float time is approximately 5-7 hours. Foil balloon float time is approximately 4 days. The Disposable Helium Tank is recyclable but not refillable. Note: Due to DOT regulations, helium tank cannot be shipped by air.