This Carrera 3/30° High Banked Curve Track comes in a six pack, and each 1:24 scale track piece is 7.79 inches wide. The outer diameter of the 3/30° curve is 5.25 feet and is made to fit on the outside of the Carrera 2/30° high banked curve. 1 piece = 30 degrees, and 6 pieces = 180 degrees (half circle). Compatible with Carrera Digital 124, Digital 132 and Evolution slot car race tracks.