25 Black Adhesive Backed Spider CD / DVD Hubs (Rosettes) - #CDNRSPBK - For Gluing into a Double or Triple Chubby CD Jewel Box To Increase Capacity! (Also Called Hubcaps or Caps) Affix In to your 2CD or 3CD Chubby (24mm) Jewel Boxes to Increase The Amount of Discs It Will Hold! Attach Your Discs Almost ANYWHERE - books, pamphlets, tables, walls, trees - wherever!