Dewalt DWST08225 Tough System Drawer Unit 2-drawer module made of structural foam for robust and durable structure Ball bearing slides for reliable heavy duty loads 6 removable cups for small parts and accessories Side latches allow stacking modules one on top of the other Side handles enable carrying or assembling products on ToughSystem metal Carrier 4 mm wall thickness for durability Can be carried on Tough System trolley Stackable with other Tough System boxes