This is a fun and challenging kit. Make the balloon power the Styrofoam square on a cushion of air! It's tricky, but you can do it. Requires placing the hovercraft on a flat, smooth surface to work correctly. Includes Styrofoam blank, balloon, fins and other hardware (Ages 10 & up). This is a fun and challenging kit. Make the balloon power the Styrofoam square on a cushion of air. Requires placing the hovercraft on a flat, smooth surface to work correctly. Features: This styrofoam craft is powered by a balloon, and you make the hove craft defy gravity Once it's up and moving, you have to control its direction There's no right or wrong way to build your hover craft If you're stumped, one set of instructions is included Customize and decorate your vehicle Have a competition for the most unique design or have a race!. A great individual or small group activity Requirements & Suggestions: Scissors Tape Adult Supervision Warning: Keep away from children under 3 years of age due to choking hazard