The 1999 Upper Deck Encore DRIVING FORCES #10 Frank Thomas Refractor RARE INSERT trading card is a highly collectible item for baseball fans and card enthusiasts. This original card features Frank Thomas from the Chicago White Sox, part of the Major League (MLB) league. Made of card stock material, this English-language card is a part of the base set and comes from the United States manufacturer Upper Deck. The refractor variety adds a unique shine to the card, making it a sought-after item for collectors looking to add a rare and valuable piece to their collection.