Unit was removed from a Mac MB520 10 Drawer Roll Cab but may fit other models. The last picture is the roll cab it was removed from.

Brand: Mac Tools
Type: Mac MB520 Friction Drawer Slide
Warranty: No Warranty
Number of Drawers: 0
Color: Silver
Manufacturer Part Number: MB520
Material: Steel
Features: Friction Type
Height: 3/8'' High
Country/Region of Manufacture: United States
Width: 1-1/8'' Wide
Depth: 17-1/4'' Long