Dimensions: 158 x 143 x 86mm Ventbox goes straight from the freezer to the microwave, then defrosts and reheat while regulating automatically Great clarity: out of best food grade high clarity PP Space saving: stackable and nestable Airtight approved: pass the JIS (Japanese industrial standard) Easy cleaning: high gross material help to get rid of oil and dust Material: PP Temperature range: -20 to 120 degree Celsius