VMP FRM-125 Non-Penetrating Roof Mount (60-Inch long 1.25-Inch OD mast, Grey) Mast included is 60-Inch long 1.25-Inch OD Can fit up to eight 8-Inch x 8-Inch x 16-Inch cinderblocks in a single layer for ballast For use with DBS, antenna and satellite internet systems Solid steel construction