InstaFlip Four Pocket Page Refills by 49 and Market. Designed for standard 2-ring binder albums, these ultra-clear page protectors feature a 4-pocket grid - with each pocket measuring 3" x 4" - making them perfect for vertical pocket scrapbooking, Project Life style cards, and photo memory keeping. Pack Contents: (12) Pocket Page Protectors: Four-pocket clear page protectors designed to fit standard 2-ring binder albums.