WORK CENTER 25 X 18 1/4 IN BK/YL18 inch portable tool box is made for spacious tool storage. Removable tray of the mechanic tool box allows enough space for larger tools to be stored underneath. Large bottom bin of the tool box organizers and storage is designed for larger hand tools and power tools. Metal front and side latches for heavy duty usage side latches can be clicked shut with or without organizer. Large 7 inch wheels for on site use. Each unit functions as stand alone.