Excellent outdoor game for improving physical fitness, agility, stamina, developing bone density, stability, and more Recommended for ages six and up Designed for two players to engage them in an exciting rocket-launching battle Pack of four Ultra Stomp Rockets with foam tip and a Dueling launch stand featuring two launch pads and air hoses Place the rockets on the air-powered launching tubes and stomp on the launch pads to propel the rockets to greater heights 100 percent kid-powered design requires no batteries and ensures easy assembly