The 2017 Panini Classics - Rob Gronkowski #40 Blue Back trading card is a limited edition collectible featuring the New England Patriots tight end. This sports trading card is part of the 2017 Panini Classics set, with a print run of 175 and a blue back parallel variety. It is serial numbered and in near mint or better condition, perfect for any NFL football card collector looking to add a unique piece to their collection.