The basics The Dritz Glass Head Pins are easy to use and will make sewing, quilting and crafting a breeze.  The benefits They come in a see-through box and are easy to locate while you are working on a project. The uses These pins are specially designed to pierce through delicate fabrics and are durably constructed for long-lasting use. You can iron over these pins without ruining the fabric as they can withstand the heat.  The bottom line This pack contains 100 glass head pins in assorted colors.