Detroit Lions Riddell Speed Throwback 83-02 Replica Full Size Football Helmet. This full size Detroit Lions a steel polyvinyl-coated face mask, 4-pt chin strap, and elliptical air vents. The officially licensed NFL Detroit Lions helmet is great for autographs and features Lions team logo decals on both sides. The striking shape of the game! NFL Detroit Lions Replica Speed helmet size medium measures: 12.75"(L), 9.25"(W), 9.75"(H). NFL Detroit Lions Full Size Speed Replica Helmet. (NOT FOR WEARING)