Rayson WR21127BK Wire Binding Spines, 2:1 Pitch Double Loop Binding Wires 1/2 Inch, 21-Loop Wire Ring Pack of 100 with Black

Rayson WR21127BK Wire Binding Spines, 2:1 Pitch Double Loop Binding Wires 1/2 Inch, 21-Loop Wire Ring Pack of 100 with Black