With tubes that twist and turn any way imaginable and airflow that adjusts from a breeze to a gale, the Air Toobz play system sparks the imagination as much as it instills a core sense of the scientific method. Arrange the tubes any way you want, switch on the fan, and launch the foam balls into action. Racing, hovering, gliding, popping - Every build is an endless thrill! And all the while... What happens when you set it to low speed vs high speed? What happens when you load the tubes with ALL the balls, then crank it all the way up? What happens when the tubes veer off in different directions? With hours of runtime and loads of balls, tubes, connectors, and accessories included - and even more to collect! - Air Toobz Evo is a rEVOlution in DIY experimentation!