: The traditional choice, typically found in smaller sizes like 1/2" to 2". They are compact and economical for light use.

: An angled variation of the D-ring, these offer excellent capacity and the smoothest page turning. 2. Choose the Right Capacity

To avoid overstuffing, which can damage rings and documents, use this general capacity guide for standard 20-pound paper: : Holds approximately 120–125 sheets. 1 Inch : Holds approximately 175–225 sheets. 2 Inch : Holds approximately 350–375 sheets. 3 Inch : Holds approximately 400–600 sheets.