Collect all the top stars alongside the packed rookie class from the 2021 MLB season. Cards #1-660 from 2021 Topps Baseball Series 1 and Series 2 can be found in the 2021 Topps Baseball Complete Set Retail Edition! The Retail Edition Complete Set also contains a five-card pack of exclusive sequentially numbered Rookie Variation Inserts. Each 2021 Topps Baseball Complete Set contains all 660 2021 Topps Series 1 and Series 2 Baseball base cards and one (1) Clear Poly Pack containing a set of 5 Rookie Variation Inserts. Factory Sealed BLUE Box!