This patch is approx 2.5" tall x 3.5" wide - it can be ironed on, sewn on or glued on.  Sewing it on is the most secure method.

I use Heat-N-Bond Ultrahold as the iron-on adhesive.

****** These are made with polyester thread.....set your household iron accordingly.....a setting for "cotton" is too hot and will melt the patch. ******

Iron-on instructions: Peel off the backing and place patch on your garment where you want it. Place a paper towel or thin cloth over the patch (so you do not get adhesive stuck to your iron). Then place hot iron over patch and hold for about 15-20 seconds. Remove the paper towel/cloth and LET THE PATCH COOL. Once cooled, turn over and do the same to the other side. You will not need the paper towel/cloth this time but be careful not to burn your garment with the iron.