Basic First Aid Embroidered Iron on Patch / 3" Medic Red Cross Badge Certified DIY Applique Brand New - Embroidered Iron on Patch Patch measures: 3" Diameter (Approx) Heat seal backing for fast + easy apply with standard household iron. Patch can be applied to almost any material - Bags, Hats, Jackets, Denim, Cotton, Polyester etc... Full Iron-On Application Instructions are Included