1/2 Lb. Box Dressmaker T-Pins. These high quality T-Pins are constructed using a steel inner core, with a nickel plating for rust resistance and fast, effortless insertion. Approximately 1,100 pins Size #20, 1-1/4" (32mm) long, .0335" (0.85mm) diameter Nickel plating results in a silver colored finish Each T-pin features a T-bar head making it easier to grasp and see The sharp point penetrates even the toughest surface without bending or breaking The steel inner core helps keep the point sharp Closed "T" head eliminates snagging fabrics.