Amazon.com : 3 Ring Binder, 6 Inch Capacity D Ring Binders, 8.5" x 11" Presentation Folder View Binder with Pockets, Durable Non-Stick Customizable Clear View Cover for Documents, Files, Projects (Black) :
Amazon.com: Samsill 16427 Titan Extra Large 6 Inch 3 Ring View Binder - Non-Stick Customizable Clear View Cover - Locking D-Ring - Holds Over 1250 Sheets - White : Everything Else
Avery® Heavy-Duty View 3 Ring Binder, 3" One Touch EZD® Rings, 3.5" Spine, 1 Black Binder (79693) | Avery.com
Amazon.com: Samsill 16427 Titan Extra Large 6 Inch 3 Ring View Binder - Non-Stick Customizable Clear View Cover - Locking D-Ring - Holds Over 1250 Sheets - White : Everything Else