This generous case comes with plenty of customisable space to protect your valuable supplies 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 handles are rubberised cases are stackable and there are two eyelets for padlocks 7mm the interior is fitted with a custo