The cards in this 598-card set measure 2 1/2" by 3 1/2". The 1968 Topps set includes Sporting News All-Star Selections as card numbers 361 to 380. Other subsets in the set include League Leaders (1-12) and World Series cards (151-158). The front of each checklist card features a picture of a popular player inside a circle. Higher numbers 458 to 598 are slightly more difficult to obtain. The first series looks different from the other series, as it has a lighter, wider mesh background on the card front. The later series all had a much darker, finer mesh pattern. Among other fashions, cards were issued in five-card nickel packs. Those five cent packs were issued 24 packs to a box. Thirty-six card rack packs with an SRP of 29 cents were also issued. The key Rookie Cards in the set are Johnny Bench and Nolan Ryan. Lastly, some cards were also issued along with the "Win-A-Card" board game from Milton Bradley that included cards from the 1965 Topps Hot Rods and 1967 Topps football card sets. This version of these cards is somewhat difficult to distinguish, but are often found with a slight touch of the 1967 football set white border on the front top or bottom edge as well as a brighter yellow card back instead of the darker yellow or gold color. The known cards from this product include card numbers 16, 20, 34, 45, 108, and 149.