K2R Colour Catcher dye trap in a 30-sheet package. The protection levels of the Colour Catcher dye trap ensure the protection of clothes during washing. It is now possible to mix all colors in the same wash without discoloration accidents. The Colour Catcher dye trap protects the vibrancy of colors, prevents fading, and traps dye and dirt residues. It is effective at all temperatures, all washing machine spin speeds, and all fabrics.