Designed for long-term storage of centrifuge tubes 15ml &50ml in freezer rack system, these cardboard freezing boxes are constructed of heavy-duty cardboard and finished w/White moisture-proof coating, feature great durability. 

· Made of heavy-duty cardboard, finished w/ White moisture proof coating, considerably durable

· Optional inserts are also available upon request

· Various customized designs are also available upon request

· Packaging: 48ea/carton