1.Steel pin is about 3mm wide, 38mm long, 250pcs/box 2.Glass head pins are made of durable steel which ensures heat- resistant, can be used for a long time 3.Round head pins are good decoration collection for office, school, home, art projects 4.Can be used on cork boards, work cubicles and map location, marking and character making 5.Warm notice: Please place them out of children Specifications: Material: Steel Glass Head Diameter: 3.0mm Sewing Pins Diameter: 0.6mm Sewing Pins Length: 38mm Package: 250 pcs of glass head pins per box Package Included:250pcs*Head Pins