gas mask skull embroidery patches large back size sewing notions for biker punk jackets custom patch, Black

super strong heat seal glue backing. this patch can be iron on or sew on to any garment. excellent machine wash performance. it will never come off. use this patch to add to the appeal of clothing, uniforms, or luggage. easily customize anything to create your own personalized look. the raw material of our patches have been passed the test. our patch is safe. clean the parthat is going to be ironed on. put the patch on the right part of clothes or bags put the side with heat seal backing on the parts directly. after the iron's temperature gets 150 degrees, iron the patche on force backward and forward for about 15-25 seconds..syi