Sheet metal frame and plastic tops, synonymous with remarkable sturdiness and reduced weight. 2 detachable modules: 1 upper tool box, 1 module with 2-drawers 3.74 in. H, 1 pull-out case made of plastic, 2.60 in. mm H and 1-drawer 11.61 in. H. Oversized castors ( 6.30 in.), built into frame for easy transport for example, on steps. Side centralized lock for closing drawers of lower module. Drawers with ball bearing slides and double closing hook. Telescopic aluminum handle. Small tool holder built into upper tool box. Lower drawer with double ball-bearing slide.