Amazon.com: Leather business portfolio 3 ring binder for letter size 3 hole refill paper/leather organizer folder for 8.5 x 11 refillable paper NL05BS : Handmade Products
Braille Notebook, 3-Ring: Azure Blue for 8.5 x 11 Inch Braille Paper | American Printing House
3-ring Binders and Case-it Zipper Binders — Campus Survival Kits and Insta-Kits
Office Depot
Amazon.com : Five Star Flex Hybrid NoteBinder, 1 Inch Binder with Tabs, Notebook and 3 Ring Binder All-in-One, Blue (72011), 11 1/2" x 10 1/2" x 1 1/4" : Round Ring Binders : Office Products
Amazon.com: Samsill Vintage Hardback Mini 3 Ring Black Leather Binder, Professional Binder Organizer, Planner Binder, 1 Inch 3 Ring Binder, Mini Binders 5.5 x 8.5 Three Ring, No Zipper, Faux Black Leather : Everything Else