Fox Run 5" Aluminum Double Boiler Maker - Turn 2 Pots Into Double Boiler Set Fox Run 5" Aluminum Double Boiler Maker - Turn 2 Pots Into Double Boiler Set With this help of this quality 5" diameter aluminum ring you can turn almost any 2 pots into a double boiler set. Simply place into the bottom of the larger pot to raise the top pot. MAKES ANY TWO POTS A DOUBLE BOILER SET JUST PLACE INTO THE BOTTOM OF THE LARGER POT TO RAISE THE TOP POT 1 pc