SAVE on Shipping & Bundle !! 4 patches for $20 !! Showcase your style by adding fun, trendy patches on clothing, hats and backpacks! New embroidered JOHNNY CASH iron-on patch. May also be sewn on. Size 3 1/8 diameter". How to use iron on patches: Set iron on cotton setting. Place patch on garment glue face down. Cover with a pressing cloth and press firmly with iron for 30 seconds. Allow patch to cool for a few minutes, then turn garment inside out using the pressing cloth and iron on reverse side for another 30 to 45 seconds. Thank you for looking!!