The product is a set of 2011 Topps Opening Day baseball trading card packs, specifically containing 4 factory sealed packs with a total of 28 cards. The cards feature players like Freddie Freeman and Chris Sale from the Major League Baseball season of 2011. Each pack contains 7 cards, and the cards are standard size and manufactured by Topps. Perfect for baseball collectors and fans looking to add to their collection, these packs offer a variety of cards to potentially uncover special rookie cards or rare top players.