What makes the NINCO track system special?. Extra wide tracks, braking circuit built-in controllers, isolated rails, four different radius curves, Easy clip building system allows for fast and reliable construction of circuits. Wider track gives more racing room for modern cars and is more realistic. Track width 180 mm (7"), distance between lanes 90 mm (3.5"), slot depth 6.5 mm (0.25"). High-grip surface for better tyre performance. Easy racetrack building. Track sections simply slide together and then press down to firmly clip into place. Integral electrical connections with metal inserts contacting three sides of the pickup rails for reliability. The track has a plastic slot between the pickup rails to eliminate short-circuits, prevent guide wear and damage, and improve car performance.