FeaturesCase shells made of polypropylene.Automatic air pressure compensation valve.Transparent name plate.4 latches.3 handles plus telescopic handle.2 wheels.Temperatures ranging from - 40 deg up to + 80 deg C.Very sturdy, stackable.Dustproof, watertight.Case shells made of polypropylene.Automatic air pressure compensation valve.Transparent name plate.4 latches.3 handles plus telescopic handle.2 wheels.Temperatures ranging from -40degrees up to +80degrees C.Very sturdy, stackable.Dustproof, watertight.Black name plate.Removable lid.Removable pre-cut, cubed foam insert in the bottom.Convoluted foam in the lid.