PVC Re-usable 21 ring binding element
12mm for binding up to 85 sheets of 80gsm A4
16mm for binding up to 125 sheets of 80gsm A4
19mm for binding up to 145 sheets of 80gsm A4
22mm for binding up to 175 sheets of 80gsm A4
25mm for binding up to 200 sheets of 80gsm A4
32mm for binding up to 265 sheets of 80gsm A4
38mm for binding up to 320 sheets of 80gsm A4
45mm for binding up to 375 sheets of 80gsm A4
51mm for binding up to 425 sheets of 80gsm A4