This is an exceptional set. It is complete, including 13 solid brass card holders and 13 solid brass knobs. The odd number of 13 is because of one card holder that is longer than the others, to be used for a title of the smaller 12 card holders. The set is also unique in that the 1/2-inch knob screws into the base of the card holder AND also is secured with a screw that feeds into the knob from the back of the drawer. Twelve of the card holders measure 2 1/4 inches wide and one inch vertically. The opening measures 1 7/8 inches by 1 11/16 inches. Each one has two small holes at the base of the plate in order to secure the holder with small brass nails (included). The one larger piece measures 3 1/2 inches long and one inch vertically. The opening is 3 3/16 inches by 1 11/16 inches. Screws are included.