The Prym button blanks made of rustproof metal with a stable wire eye are available in different sizes between 11 mm and 38 mm. The right button can be made for each of your own creations, which means that there are no limits to your own creativity. A toothed edge on the inside helps to stretch the fabric evenly. On the back of the pack, illustrated instructions explain in three steps how it works. A cutting template is also shown for circular cutting out of the fabric. Depending on the textile used, the finished buttons can be washed at up to 60 degrees. They are also available in bulk packs of 100 for professional use.