"Separate your record cards into an A-Z index using these Business Guide Cards. Each card has a tabbed reference to a letter of the alphabet leaving you free to distribute your note, archives and information taken down on record cards behind the relevant guide and create a alphabetised index system. Ideal for storing contact information organised by surname or company name. Buff coloured to separate them from white record cards for easy, at a glance retrieval. These guide cards measure 5x3 inches and can be used with Business record cards and index boxes (available separately)."