The product is a Tyler Kolek Marquette Golden Eagles signed basketball jersey, authenticated by Beckett Authentication Services (BAS). This original item is a size XL jersey featuring the signature of the Marquette Golden Eagles player. It is a must-have for any basketball fan or collector looking to add a unique piece to their collection. The Beckett authentication ensures the legitimacy and authenticity of the signature, making it a valuable and special addition for fans of the Marquette Golden Eagles.