The product is a Stanford Cardinal basketball jersey signed by Mark Madsen, with authentication from James Spence Authentication (JSA). This original autographed item is a must-have for fans of the team and collectors of sports memorabilia. Mark Madsen is a known figure in the basketball world, and his signature on the jersey adds value and authenticity to the piece. Whether displayed on a wall or worn as part of a uniform, this unique item is sure to be a cherished piece for any fan of the Stanford Cardinal basketball team.