The product is a 2026 Topps Chrome Blas Castano Rookie On Card Auto Aqua Refractor trading card, featuring a hard-signed autograph by Blas Castano. This limited edition card is serial numbered 91 of 199 and is part of the Major League Baseball (MLB) set. The card is authenticated by Topps and includes features such as being serial numbered, a short print, and a rookie card. It belongs to the Seattle Mariners team and is a highly collectible item for fans and collectors of baseball trading cards.