Package includes 30 pcs of sewing clips in assorted colors with a storage case. Mr. Pen sewing clips are made of sturdy transparent plastic. The clip opens wide to 0.55 holds layers of fabric and the clip base is flat for easy feeding to the presser foot. These sewing clips are perfect for all sorts of sewing cloth art and fabric work. Different colors help mark the fabric and locking stitch. Mr. Pen sewing clips meet multiple needs for holding various layers of fabrics organizing papers as book clips binding objects like quilts hanging on a rope to show pictures etc.