STB Sports is an online retailer specializing in minor league baseball cards and collectibles. Based in Mount Vernon, Washington, the store offers an extensive range of team sets and individual cards spanning many decades, including minor league, independent league, college, and women’s baseball collections. Its inventory also includes major league sets and rookie cards, Japanese cards and schedules, vintage sports cards and photographs, and non-sport vintage cards and sets, including movie memorabilia.

Collectors can also browse autographed items and memorabilia, such as signed baseballs, photos, bats, cards, magazines, and game-used pieces, along with graded baseball and other sports cards. Additional categories cover football, basketball, hockey, boxing, golf, wrestling, and Starting Lineup figures. STB Sports features newly arrived team releases and special group deals, with selections and availability changing over time. The site notes that some listings may not include images or detailed descriptions, and invites customers to contact the store with questions or requests for specific items.