Raise your Harbor Freight Series 3 27" and 42" toolboxes to match the height of the 56" and 72" models with these heavy-duty steel risers. Unlike other risers on the market that are made from 3D-printed plastic, these are built from durable 11-gauge steel for superior strength and long-term reliability. Each riser is laser cut and CNC bent for a precise fit, and they align with the OEM bolt holes for straightforward installation. These risers raise your toolbox by 2-1/2", giving your setup a more uniform look and consistent working height across your Series 3 toolboxes. Note: The hole spacing on these risers match the 27", 42" and 56" toolbox casters, but they raise the 27" and 42" to specifically match the height of the 56" and 72" toolboxes. Kit Includes: 4 steel spacers 16 (3/8") carriage bolts 16 flange nuts This kit is raw steel and unfinished. Casters Not Included