The product is a lot of 8 Real Trax 031 curves, which are part of a model railroad track system. The track form is a curve, designed for use with toy trains on an O gauge scale. These curves are made of plastic and are compatible with a 3-rail-2-conductor rail system by the TRAX brand. Perfect for adding an exciting element to a model train layout, these curves provide a realistic and fun track for toy trains to follow.