These button blanks made of stainless metal and a stable wire eyelet are offered by Prym in many sizes with the complementary tool. It makes it even easier to create personalised buttons for your own creations. A gearwheel on the inside of the button helps keep firm the evenly-stretched fabric. The included instructions show how it works. A cutting template is also illustrated on the packaging for cutting a circle in the fabric. Depending on the textile used, the finished buttons can be washed at up to 60 degrees. Prym carries bulk packaging with 50 or 100 units for professional needs.