The file 'Corner Endcap For Metal Shelving 3D Printer Model' is (stl) file type, size is 4.8KB.
This is an angle iron end-cap for metal shelving.
Fits angle iron that is .062 in (1.57mm) thick and 1.25 in (31.75mm) long on each leg.
Designed to fit tight so it won't fall off.
