This is - without a doubt - the largest flying toy you will ever see! The XXXL Solar Air Shuttle is 50 FEET LONG and is 29 inches in diameter!!!! You inflate it by running with one end open. Tie off the open end, attach a string (not included but necessary if you ever want to see your shuttle again), let the inflated bag set in the sun for a few minutes and after it heats up it will take-off. What more can we say? The pictures say it all!