ROHN FRM225 Non-Penetrating Roof Mount with 2.25" x 60" Mast - Satellite WIFI NON-PENETRATING ROOF MOUNT FOR SATELLITE DISHES, WIRELESS INTERNET ANTENNAS, ETC FOR USE WITH 16" NOMINAL CONCRETE BLOCKS TO ANCHOR TO ROOF ((NOT INCLUDED)) PRE-GALVANIZED FOR CORROSION PROTECTION 14 GAUGE, 2-1/4" X 60" MAST INCLUDED. 3' SQUARE BASE. ROOF MAT NOT INCLUDED (SEE FRMMAT) GOES TOGETHER QUICKLY