For hot and cold food storage.Easy to keep clean and dishwasher safe.Moulded-in handles allow for ease of transport.Imprinted Red graduation marks for inventory control.Optional covers seal tightly, have tabs for easy removal and make containers stackable.Clear polycarbonate models will not crack, chip or break under normal use and will With Stand temperatures from -40 degrees to 210 degrees Ferinheight.Seal covers fit clear containers only.NSF approved.