The Oxford A-Z index card guide set is ideal for organizing, desktop referencing and managing follow-up files. The extra rigid 15 pt. Stock provides strength and durability. These card guides measure 4 x 6 inches and have pre-printed, 1/5 cut tabs for easy sorting of your notecards, recipe cards, study materials and more. Paper made with 10% recycled fiber with 10% post-consumer fiber. Manila. Set of 25 guides.