The 2025 Topps Update - 1990 Topps Rainbow Foil Set Builder #1-50 allows baseball fans to collect and build their favorite MLB trading cards from top players like Nick Kurtz, Mickey Mantle, Shohei Ohtani, and James Wood. These authentic Topps cards are made of durable card stock with a 20 Pt. thickness, featuring a standard size and original design. Each card is part of the MLB World Series event and is an insert in the 2025 Topps Update set, making it a valuable addition to any sports trading card collection.