Seria 6-Ring Binder Refills 20 Free Pockets per pack Set of 2 These are dedicated refills. They can be used with Seria binder files like those in images 2 and 3. Compatibility with other companies' products is unknown. These were purchased from a store. Although they are new, please understand that they have been handled by someone. Since they are unopened, please contact the manufacturer directly regarding initial defects.