The Corning® 25cm² Rectangular Canted Neck Cell Culture Flask features a 25cm² available growth area. This T25 flask is manufactured from optically clear virgin polystyrene. The flask neck style is canted and cap style is vented. 25cm² available growth area Manufactured from optically clear virgin polystyrene Treated for optimal cell attachment Printed with lot numbers for ease in traceability 100% integrity tested Sterile Nonpyrogenic