Store Special - Like new condition with no broken tabs. Item 20572 This Carrera Digital 124/132/Evolution 2/30 Curve Track comes in a six pack, and each track piece is 7.79 inches wide. The outer diameter of the 2/30 curve is 3.94 feet and is made to fit on the outside of the Carrera 1/30 curve. 1 piece = 30 degrees.