A containment case assembly, including a tray and closing lid, comprises an upper frame that is configured to support from one to a plurality of removable screw decks is described. The screw decks have a column of first openings into which removable silicon plugs or inserts are positioned. The removable inserts include indicia or labels that indicate to a user the size of a surgical screw that is positioned in a row of second openings that are aligned in the screw deck immediately adjacent to one of the first openings. The upper frame of the containment case also has an inlet provided with a series of adjacent indicia or labels that are spaced at regular millimeter intervals for use in verifying the length of a surgical screw. The upper frame is further provided with a series of regularly spaced openings that have progressively larger sizes. These openings enable a user to verify the diameter of a surgical screw.
