This is a set of 12 German WWII repro button S-rings that are used so that the buttons do not need to be sewn in the tunic. With 12 rings you will have enough to cover the entire tunic including the shoulder boards. These are the closest to the original tunic S-rings you will find. I have had them made exclusively for me with an agreement that I will have exclusivity to sell them. Much expense and time was spent to have them done to high standards. The ends of the metal filament are cut and then ground so that no burs will cut or grab on to the garment fabric. As well they were NICKLE PLATED and not zinc. The reason for the Nickle plating is that it is superior to zinc plating and the premium originals were also nickle plated. Nickle plating is a good bit more expensive than zinc but also holds better and stays on the metal better so it will not leave rust stains on your tunic. It is $4.50 to ship this item anywhere within Europe and $5.00 to send to the US, Canada, Australia, NZ and most of Asia.