The 2005 Donruss Timber & Threads TT-27 Mark Prior Bat Relic trading card is a baseball collectible featuring memorabilia from the MLB player Mark Prior. Manufactured by Donruss in 2005, this sports trading card is part of the Timber & Threads set and showcases a piece of Prior's bat. This insert card is a valuable piece for fans of the Chicago Cubs and baseball memorabilia collectors alike.