Available in 21 Ring --- All sizes
Most sizes also available in 20 Ring
Recommended Page Capacity:
06mm-25sheets 08mm-45sheets 10mm-60sheets 11mm-75sheets
12mm-90sheets 14mm-110sheets 16mm-130sheets 20mm-150sheets
22mm-190sheets 25mm-210sheets 28mm-250sheets 32mm-270sheets
38mm-320sheets 44mm-390sheets 50mm-450sheets