Quilting pins numbered keep the design in order during assembly of rows or columns. 130 numbered pins are provided in a convenient- compartmentalized- two sided case for easy organization. Quilting pins flat head are made from high quality- stainless steel- flat head pins as a simple tool to keep your project organized without disturbing your layout. Numbered Pins are a great alternative to masking tape- especially when residue can damage the fabric. Pin a Numbered Pin in the upper left hand corner of a block- row or column to keep track of specific pieces as you rotate or shift your fabrics