Awesome 140 piece construction kit - use a modular building system to put together a working ball shooter.
Explore the physics of force and motion with this cool construction kit. Follow the illustrated 42-page guide to put together the 140 easy-snap pieces, then ready... aim... FIRE! The fully functional blaster has a pump action mechanism and a brilliant black and orange colour scheme. With ammo capacity for seven balls, it can even fire projectiles up to 20 feet! Challenge your engineering skills with this brilliant build - a sure-fire winner!