Color Cards, or thread charts, are available to help you choose the right thread weight and color.  Color cards contain thread care, the thicknesses, or weights, that each thread is available in, and most importantly, color numbers.  A Pantone® chart on most color cards can be used to match Madeira Classic Rayon and Polyneon with colors in the Pantone® Color Matching System.  Color cards are available for all types of thread at Madeira.