Nickel silver track and gray roadbed; 5/card. 26 radius curved track is best used to make wide sweeping railroad curves. This track accommodates longer locomotives and rolling stock and permits mainline operation at higher speeds. It can also be placed on the inside of 28 radius curved E-Z Track for excellent double-track mainline realism. Five pieces of track make up one quarter (90 degrees) of a 52 diameter circle.