In Crazy Race the falling row of dominoes is the starting signal for a race. First you build the course, then you tip the first domino, and the chain reaction sets the two cars going.
The box holds 150 dominoes, two loops, two racing cars, a launch system and a ring of fire. All together that lays out a track of about 3.5 m, in two lanes, so the cars can set off side by side.
The dominoes are true domino size, marked on the box as 1:1. Building asks for patience and a steady hand, and that is exactly what makes it good: one domino standing too close brings the whole row down too early and you start over from the beginning.
The box says 6+. For children who would rather build it themselves and then set the track up another twenty times.