Material: nylon mil-p-20693 comp a, type 1 or comp b, type 4 or 4a, 0.79 in.Lg.; 0.39 in.W.; 0.063 in.Ht.; 8 holes 0.036/0.044 in.Dia placed 4 to a row, 2 rows; each hole is separated by 0.2 in.From adjacent hole; corner hole is placed 0.095 in.From each side; corners rounded: radius 0.03 in.