Package color reflects approximate results when dyeing white or off-white 100% cotton. One package dyes 1 lb. Dry weight or about 3 yards medium weight fabric. For most washable fabrics. Not recommended for 100% polyester, acrylic, acetate, fiberglass or metallic fibers, or fabrics with special finishes, rubber backing, washable only in cold water or labeled Dry Clean Only. Use Rit Color Remover to lighten the original fabric color as much as possible before dyeing to a lighter or different color. Double the amount of dye for bright or dark colors. Add 1 cup salt for cotton, 1 cup vinegar for nylon, silk and wool. Complete directions on inside surface of carton.