Rit Dye Powder Dye, 1-1/8 oz, Dark Green, 3-Pack Works beautifully on many washable fabrics including cotton, linen, silk, wool, and ramie blends Can be used with either washing machine or bath dying methods One package dyes 1 pound dry weight or about 3 yards medium weight fabric Double the amount of dye for brighter or deeper color results Not recommended for use with 100% polyester, 100% acrylic, or fabrics with special finishes, rubber backing, or are dry clean only