Ball Track - Basic Pack Funnel Jungle (Haba 302945)

 
 
variable set-up for maximum speed: speed tubes and funnel curves are adjustable thanks to the tube clamps aloft
 
 
for exciting physics experiments with speed and force: with the power pulser track, arriving marbles transmit the impulse to the awaiting marbles
 
 
in the big speed circle, the marbles spiral around, first slowly, then faster and faster