Continuous feed, sturdy index cards that are ideal for processing through computer printers & regular word processing typewriters. Simply load the paper into the printer or typewriting machine & it prints flawlessly. The paper is marginally punched, rotary cut, & fan-folded for smooth feeding. Constructed of thick, 100-lb, unruled, white paper with perforations for 3" x 5" index cards. Ruling: Unruled; Card Size: 3 x 5; Color(s): White; Color Family: White.