16 ball spring safety or diaper pins. They are 30 mm long, size 1 (3/16"). The ball replaces the usual coil which does not tear fabrics. The box opens by a small key on the side, just like a tin of shoe polish. It is covered with a round label representing a sewing lesson. Another label on the back indicates the contents. Dimensions of the box: Ø 4.7 cm - thickness 1.8 cm. All our pins and needles are MADE INFRANCE. Perfect with our Sajou Cottonpostcard. See our haberdashery products in metal tin boxes.