The product is a lot of five Topps non-sport trading cards from the 1965 MonsterGreetings set, featuring artwork by Robert R. Crumb. These vintage cards are sought after by collectors for their unique character and historical significance in the world of trading cards. Each card likely features a different design or illustration related to the MonsterGreetings franchise, adding to the overall appeal and value of the collection. Fans of Robert R. Crumb's art and vintage trading cards would appreciate this rare and nostalgic set.