Lion Large record book with 100 removable pockets, is designed to hold index cards, Patient record, information cards, etc. Black panel is made of light and durable innovative material with Protective steel rim for long lasting use. Removable clear PVC pockets with metal post have pre-cut notches that will accommodate 3 x 5, 4 x 6 and 5 x 8 size cards. Multiple index card file has visible index tab on each pocket for quick reference. Used by many government offices, hospitals, schools and Police stations. One hand operation, for inserting, removing & flipping Patient charts, makes this an easy reference, medical record book.