The product is an autographed Nike LeBron 21 Araginite Jade Denim shoe by Ajay Mitchell, a basketball player for the Oklahoma City Thunder. The autograph is authenticated by James Spence Authentication (JSA) and is considered an original, making it a unique and collectible item for fans of the NBA and basketball memorabilia. The size of the shoe is 15, making it a rare find for collectors looking for larger sizes in signed sports items.