Great Wall of China Iron on Patch / 3.5 Inch Embroidered Trekking Badge Brand New - Embroidered Iron on Patch Patch Measures: 3.5 Inches Diameter / 9cm 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 Application Instructions are Included