The product is a 1987 Topps Record Breakers Mark McGwire #3 White Triangle Error trading card. This card features baseball player Mark McGwire and is part of the 1987 Topps set. It is a rare variation with a white border and is considered an error card due to the triangle-shaped missing piece on the top left corner. This collectible item would be highly sought after by sports trading card enthusiasts and fans of Mark McGwire.