I sew these pincushions for my store. When you use this black mineral to fill your pincushion it becomes one of the best pincushions in all the world! Emery pincushion! Every time you stick your needle or pin into an emery pincushion, it cleans it of the natural oils in your fingers and any impurities in your cloth. It also sharpens the very tip of your needle, making your work quicker and easier on your hands.
You can buy emery from my web page www.nakpunar.com