1.Crown: 11.40-11.50mm 2.Leg Height: 6.90-7.20mm 3.Thickness: 0.39-0.41mm 4.Width: 0.49-0.51mm 5.Material: galvanized steel wire, copperized steel wire 6.Packing: 210pcs/row, 5, 000pcs/box or 105pcs/row, 5000pcs/box There are four main characteristics of our products. First, our staples own good penetration (over the max. test standards). Second, you can use small strength to bind books (over the max. test standards). Third, our product glues bond firmly. Fourth, the surface is very smooth and bright.