Simple

WARNING: CHOKING HAZARD-Children under 8 yrs. can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once.

A 5-3/8" x 2-3/4" wooden boat as simple as can be. A simple balloon that fits onto it. Simply blow up the balloon, place the boat in water in a tub or pool, and let it go. The balloon's escaping air sends the boat across the water. Comes with (2) extra balloons.