Iron On Embroidered Segment Patch: CRAFTS Patch. Size: 1" x 5/8". These are easy to apply to a garment, tote bag, place mats, sheets, etc. Heat seal to cotton and cotton/polyester fabrics. DO NOT APPLY TO RAYON, NYLON OR ACETATE FABRICS. INSTRUCTIONS: Preheat iron to "cotton" setting. Do not use steam during applications. (2) Position design and cover with thin pressing cloth. (3) Press straight down with constant pressure for 25 seconds. DO NOT IRON BACK AND FORTH. (4) Allow to cool thoroughly before using. These are machine washable and durable. I recommend line drying any decorated item of clothing. We will send a set of instructions with purchase.