Klein Tools MODbox™ Medium stackable tool box features side rails that connect attachments for more storage options and easy access to commonly used items. Metal reinforced handle pivots for a comfortable top carry when not connected to other MODbox™ component parts. Tool box organizer is IP65 rated, 100-Pound capacity, and made with heavy duty impact resistant polymers. Comes with a removable Tool Caddy. Easily connects with other MODbox™ components to make a custom mobile workstation.