Amazon.com : 3 Inch Binder 3 Ring Binders Grey, Slant D-Ring 3” Clear View Cover with 2 Inside Pockets, Heavy Duty Colored School Supplies Office and Home Binders – by Enday : Office Products
3-ring Binders and Case-it Zipper Binders — Campus Survival Kits and Insta-Kits
Avery Legal Durable Non-View Binder with Round Rings 14 x 8 1/2 2" Capacity Black 06401 - Walmart.com