This solar generator protection was made for an Ankler Solix F3800 6000w. THIS ITEM WAS DESIGNED AND MADE BY RONALD WELTMER A DISABLED VETERAN. The top and bottom are made of galvinized steel and the sides are aluminum. This cage is made to repel EMP radio and gamma waves NOT micro waves. The cage is shipped disassembled sides for shipping convenience and cost saving, The holes are predrilled and hardware is provided for easy assembly. Now is the time to buy as metal is becoming more expensive and more difficult to find. It can also be useful for other electronic devices.Outside dementions are 17" square X 30 1/2" high. Subtract 1" for inside measurements. PREP WELL AND PROSPER