Two Tone Letters are the most popular letters that give a great, authentic look to your jersey. More colors mean better quality. Each letter comes prepositioned, one color on top of the other. These are 2 layers with 2 colors. Perfect for football, baseball, hockey or basketball jerseys. Can be used for little leagues, colleges, team sports, etc. Pro Patches USA has top quality authentic sports twill at the best prices on the net. See the rest of our online store for more details. Each number or letter can be used as an iron on application, or a sew on/stitch on application. Ironing on each character, will have a temporary hold, however sewing or stitching on will be permanent.