School Smart Polypropylene Round Ring View Binder, 1/2 Inch, Black - Walmart.com
Amazon.com : Avery Economy 3 Ring Binder, 0.5" Round Rings, 1 Black Binder (03201) : Office Products
Amazon.com : Blue Summit Supplies 10 Pack of 1/2 Inch 3 Ring Economy Binders, Black, Bulk Clear Cover Binders for Home, Office, and School, 8 1/2 Inch x 11 Inch Paper, Value Pack : Office Products
Amazon.com : Avery Durable View 3 Ring Binder, 1-1/2 Inch Slant Rings, 4 Black Binders (05738) : Office Products
Amazon.com : Avery Durable View 3 Ring Binder, 1/2 Inch Slant Rings, 4 Black Binders (05736) : Office Products
Avery Legal Durable Non-View Binder with Round Rings 14 x 8 1/2 2" Capacity Black 06401 - Walmart.com
Amazon.com : Universal Round Ring Economy Vinyl View Binder, 1/2-Inch Capacity, White (UNV20952PP) : Half Inch Binders : Office Products