The product is a 2021 Bowman Chrome Prospects Coby Mayo Speckle Ref /299 #CPA-CMA Auto PSA 10 trading card. This single-insert card features an autograph from Coby Mayo, a rookie player for the Baltimore Orioles in Major League Baseball. Manufactured by Topps, the card is part of the MLB World Series set and is made of card stock material. The autograph is hard-signed and the card is serial-numbered, making it a valuable addition to any sports trading card collection.