The product is a set of 1971 Topps MLB baseball trading cards, specifically cards numbered 201-400. This set allows collectors to complete their collection of baseball cards from that year, manufactured by Topps. The offer includes buying 5 cards and receiving free shipping, making it a convenient and cost-effective way to add to a sports trading card collection. With a focus on Major League Baseball, these cards capture the essence of the 1971 season and provide a nostalgic glimpse into the history of the sport.