The type 4000 case offers a lot of storage space in a compact design it is ideal for camera equipment measuringtesting equipment or night visionoptics the case shell is made of polypropylene pp certified with the stanag 4280 def stan 81 41 and ata 300 standards and has an automatic air pressure compensation valve it is strong dustproof waterproof ip67 certified and temperature resistant from 30c up to 80c the handle is rubberised cases are stackable and there are two eye