1Principle: Active ingredients in the anti stringing colour masterbatch can promptly and quickly absorb and lock the free dye pigments and harmful substances in the water, so as to prevent these dyes from adhering to other clothes. 2Simple To Use: If you find the clothes have been string dyed during the washing process, please put them back into the washing machine and add the colour masterbatch to rewash them, as long as the dyes on the dyed clothes come off into the water, they can be strongly adsorbed by the colour masterbatch. 3Saving Energy: Using color catcher patch, you can achieve the effect of saving electricity, water and time by mixing and washing different colours of clothes without washing them separately. 4Scope Of Application: Suitable for washing clothes made of cotton, linen, chemical fibre, blended fabrics and other materials, as well as baby clothes, underwear and other intimate apparel. 5Quantity: Dye color trapping sheet is designed with 40 count quantity, there are enough of them to last you a long time, can replace old or broken ones with new ones. 40 xColorCatchers