The 2019 Panini Prime Race-Used William Byron #RU-WB Tires 37/50 trading card is a limited edition collectible featuring a piece of tire from the car driven by William Byron during the 2019 NASCAR season. This original card is part of the Panini Prime set, with a print run of only 50 copies, making it a highly sought-after item for fans of auto racing and William Byron. The card is serial numbered, showcases the Firesuits parallel/variety, and is a valuable addition to any sports trading card collection.