The product is a 1987 Topps #366 Mark McGwire Rookie PSA 10 GEM MINT trading card. This beautiful vintage baseball card features the iconic player from his rookie season with the Oakland Athletics in the MLB. As an original card from Topps, it holds significant value for collectors and fans of Mark McGwire and baseball memorabilia. This card is a perfect addition to any sports trading card collection, especially for those interested in vintage baseball cards from the 1980s.