SINGER-10 iron-on patchettes. Each patch is 2"x3". Denim color. 100% cotton. Low heat-for permanent press and other fabrics. Use dry iron only-no steam. Washable and super sealing for mending and decorating shirts, jeans, skirts, and jackets. Not recommended for use on nylon, or rayon, or fabrics made of monofilament (non-fibrous strand) polyesters.