1991 Stadium Club is the first Stadium Club Baseball set ever released by Topps. This was the largest non-flagship set that had been produced to date. The cards were drastically different from traditional Topps sets. The cards used full bleed photographs instead of frames or borders. The photography itself was typically a step-up from what was typically used in Topps sets. The traditional cardboard was also given a glossy finish. This was Topps' answer to Upper Deck, an upscaled production value set, moving Topps towards a more high-end product.