Rit Dye Laundry Treatment Whitener and Brightener, 8 fl oz, 3-Pack Fabric whitener and stain removing laundry liquid formula. Safely removes or lightens stains and whitens non-bleachable whites. Pre-dissolved liquid dye is also great as a stain for unfinished wood and wicker. Works on silk and dried floral, nylon, fiber glass, plastic and even golf balls. Not recommended for 100% polyester, 100% acrylic or fabrics with special finishes, rubber backing. Washable only in cold water, or labeled dry clean only.