Harness the power of the sun for an unforgettable flight experience! Watch in awe as this giant solar balloon lifts into the sky using only sunlight! Measuring an impressive 50 feet long and 29 inches in diameter, this lightweight balloon rises as the sun heats the air inside. A fascinating hands-on demonstration of solar energy and buoyancy. Includes 50' x 29" diameter solar balloon, 400' of string, and full instructions Comes with a science learning guide to explain the physics behind the flight No helium or gas required—just sunlight and curiosity Great for science fairs, classroom demos, or backyard experiments Recommended for ages 14 and up Only sold in increments of 6 (case pack of 6) A spectacular and educational outdoor activity that turns solar science into high-flying fun!