Gatsby(R) Men's Prince of Wales Spurs - 25mm Traditionally styled zinc die cast spurs with 25mm round shank. Features : Traditionally styled 25mm round shank Zinc die cast Men's Gatsby(R) Your Horse, Our Purpose. Founded in 1979, Gatsby(R) is one of the industry's most recognizable and credible equestrian brands. They are founded on the belief that the more time you spend with your horse, the better - that's why the products designed by Gatsby(R) make sense for the barn and for your budget.