Singer 5-inch-by-5-inch Iron-On Patches, Faded Blue, 2 per package Iron-On Patches are ideal for mending, reinforcing and decorating many different applications. These versatile 100% cotton patches can be decorated or die-cut and appliqud to most fabrics (Not recommended for use on nylon, or rayon). Made in China Patch measures 5-inch-by-5-inch.