This is a box of heavy paper cards with wool "snippets" of each color in the Appleton Tapestry/Appleton Crewel line of threads. The colors are broken into color families and members of the same family are on the same card. Since there are 423 colors in the Appleton Tapestry line, there are a lot of colors to keep track of! A useful tool for stitchers who love Appleton and want to be able to pick just the right color for their project.