1) diamond embossed ABS panel surrounded with square aluminum frame 2) strong ABS handle with metal base, metal latches with keyholes, reinforced metal corners, hinges on the backside 3) 2mm thick PE lining inside, 3-in-1 set case can hold many things and tools 4) size: 460x335x150mm (L) 430x290x120mm (M) 400x250x90mm (S) many sizes can be made to order tool case for storage, tools, for house hold You can take other style below for reference: