Tape guides for guiding a magnetic tape in a tape cassette including a two-half cassette housing one half of which holds a pair of tape reels and a length of magnetic tape wound on the reels, said housing half having openings formed on the front side for supply and takeup of the tape, said tape guides being located at both corners of the front side and adjacent the openings, are made basically of a composite resin material of polyethylene and polypropylene resins and contain a carbon black and an anisotropic inorganic filler.
