Recording tape cartridge

A recording tape cartridge complex which comprises a recording tape cartridge having a upper and lower wall member, each with an inner surface, a recording tape with respective edges would in a roll on each of a pair of hubs provided on at least one of said upper and lower wall members of said tape cartridge and at least one slip sheet comprising apertures corresponding to said hubs laid on at least one of said inner surfaces of at least one of said wall members of said cartridge to elastically support said roll of the recording tape, said at least one slip sheet comprising a plurality of rib units, each of said rib units being composed of a plurality of ribs which project from said slip sheet to form a hexagonal configuration in plan view with said rib units linked in both longitudinal and widthwise directions over the entire surface of sald slip sheet in such a manner that one side of said hexagonal configuration of said respective rib units forms a common side with an adjoining hexagonal rib unit so as to form a multiplicity of irregular lines corresponding to said common-adjoining sides of said rib units extending from respective ends of said slip sheet.