Jump it UP! WAY UP! How far.How about the height of a 30-story building! Simply slide the safe, foam Jump Rocket onto its launching pad, jump up and land on the hemisphere-shaped air pump, and watch it BLAST OFF to a height of up to 90m It couldn't be easider, simpler or more fun.Kids even get a little exercise too! These rockets feature soft, durable foam bodies with extra soft foam tips.Each set includes three rockets, launch pad, and durable air pump launcher with patented Thrust Booster that adds more flight time.