The heavy-duty safety pins can penetrate thick fabric easily, and they can be used for jewelry making, sewing, basting quilting, sweater, mattresses, etc.
Made of iron, the heavy-duty safety pins are used with heavyweight materials like wool, leather, canvas, and upholstery. When Locked, the sharp tip is covered to protect against any accidents. Large safety pins stick easily into the fabric, and do not cause damage or large hole. 10 different sizes are available.
