RAYSON Wire Binding Spines, 34 Loops, 40 Sheets, 3:1 Ptich, 7.9mm, A4, Black, Pack of 100

Binding Capacity: 40 Sheets (80gsm ), Diameter 7.9 mm 34-loop, 3:1 pitch, A4 Use with 3:1 pitch wire binding machine for binding internal reports and functional documents Durable, metal double-loop wire combs ensure lasting performance Pack of 100, Black