Ravensburger's interactive bullet track system more information Transport your bullets back up! With this set you take your bullet track experience to a new level. Combine the lift and additional building elements with your GraviTrax Starter-Set for even more ball track action. How many bullets do you transport back up with the elevator? content Manual (D, F, I, EN, NL, E), 1 elevator, 7 silver balls, 1 transparent floor, 8 large vertical pieces, 4 small vertical pieces, 1 long plastic rail, 2 medium plastic rails, 3 short plastic rails . Only playable with the GraviTrax starter set.