Voor CB753 & CB754. Mark it Fresh window for easy, fast inventory control and date coding. Lightweight plastic won't scorch when heated and remains cool to the touch for efficient handling .Temperature range (-40ºC to 100ºC) - made of clear polycarbonate. Lids and containers are dishwasher safe for easy cleaning. Soft lids for storage and transport; stackable for saving space. Conforms to Euro Norm EN631.