Blast off for water-spraying, kid-pleasing good times! Intense water spray on lift-off is enough to keep kids busy experimenting with rocketry for a long while! A water rocket is always a hit. The 4M version is so simple to use - it will last long beyond a passing fascination. Assemble your rocket, fill it with water, pump up the pressure, and fun is flying high! Capable of blasting over 30 feet - this is a reliable water rocket your kids will clamor over, charge after on its landing, and send soaring again and again! Ages 8 & up.