JUMBO Jump Rocket Set, Includes Jumbo Pump & Air-Power Launch Pad + 2 SR. Soft, Safe Foam Rockets The biggest Jump Rocket Set ever: each Rocket is 17 inches long! Air your rocket, then jump or stomp on the air chamber to send rocket soaring. Soft, safe foam rockets can soar up to 150 feet! Includes swivel launcher (to adjust your aim) and 2 large (SR.) rockets. For Ages 6 years and above.