The Base Set for 2013 Triple Threads is a 166 card set featuring current major league stars, Hall of Famers, young riser players and rookies. Card numbers 105, 115, 121, 137, and 150 do no exist. Cards 101-171 are autographed game used cards, each serial numbered to 99. Some of the cards were not signed in time to include in the pack out, therefore the were inserted as redemption cards.