Index Card Binder, 3x5 Lined Index Cards with Ring Holder and Dividers, Mini Binder, Index Cards with Ring, Small Organized Folder for Recipes, Card 4 Pk Index Cards Multicolor Yoobi Oxford Poly Index Card Binder 4 12 H x 6 12 W x 1 12 D Assorted Colors No Color Choice Office Depot Oxford Poly Index Card Binder 5 X 3 Sheet Size 100 Sheet Capacity D ring Fastener S 2 Divider Index Card Binder: 4x6 & 3x5 Storage & Organization My homemade 8 ring notebook that can open up like a binder. It uses 3x5 index cards, and I hole punched every sheet myself. I bought a leather cover for it, and it fits