Tool Box Trolley Caster Brake Type Side Lock Caster Diameter 2 in Caster Material Plastic Caster Tread Material Plastic Caster Type Solid Caster Width 2 in Color Black/Yellow Compatible Modular System TSTAK For Use With TSTAK(R) Storage Containers Includes Removable Cups for Small Parts and Accessories and Removable Dividers for Drills and Bits Organization Number of Casters 4 Overall Depth 18 7/8 in Overall Height 7 in Overall Width 17 in Part of a Modular System Yes