Secure these super-heavy duty aluminium checkerplate toolboxes on the back of your ute for strong and secure storage. This price for this quality and size is a breakthrough! 2.5 mm Heavy Duty Aluminium Checker plate construction - 2.5 mm thick - compare before buying, most companies offer 1.5mm only, which is nowhere near as strong or robust. Strong, hard wearing doors Reinforced doors with double gas struts and full length piano hinges make them indestructible Fully welded seams Thanks to strong fully welded seams the Boltbox toolboxes can withstand even the toughest jobs -- no shortcuts here with tack welds you find elsewhere. Rubber door seals For extra durability. Weather resistant to suit our Australian climate.