The 2018 Panini Spectra Building Blocks Michael Gallup trading card is a limited edition collectible featuring the Dallas Cowboys wide receiver. This card is serial numbered 49 out of 99 and is part of the original Building Blocks insert set within the 2018 Panini Spectra collection. Manufactured by Panini, this sports trading card is made of card stock and is authenticated by Panini Authentic. It is a must-have for fans of the NFL and collectors of sports memorabilia, especially those interested in rookie cards and unique parallel varieties.