Holds up to 140 2-by-2-inch slides. Cat 184-0768 * Accepts slides mounted in cardboard or thin plastic mounts - NOT glass or metal mounts up to 1/16 inch thick. * For use on all Kodak Carousel and Ektagraphic slide projectors EXCEPT models 550, 550R, 570, AV580, RA-950, Carousel S, pocket, and Ektagraphic model RA-960.