Perforated paper provides the convenience of detachable sheets for training manuals and workbooks, or detachable replies for invoices, return remittances and announcements. 52 microperforations generate a smooth, clean edge. 11-hole punched paper fits all popular binder styles. Paper is quality controlled to ensure no paper deformation around hole or loose holes within a ream. This translates into fewer paper jams. Reverse curl control ensures that the 20 lb. sheet will lie flat enabling crisp images, few paper jams, and compatibility with post processing equipment.