Standard playing cards are available in various sizes, sometimes designated as "wide" and "narrow" or referred by the manufacturer as either "poker" or "bridge" sized; nominal dimensions are summarized in the adjacent table. However, there is no formal requirement for precise adherence and minor variations are produced by various manufacturers in different countries. In Germany, for example, standard Poker and Rummy packs by ASS Altenburger and Ravensburger measure 92 × 59 mm. Austria's Piatnik sells packs marketed for Bridge, Poker and Whist measuring 89 × 58 mm; while Britain's Waddingtons produce generic packs sized at 88 × 58 mm.