American Metal Craft Hamburger Patty Mold Maker, 4-1/2" Diameter, Adjustable, Heavy Cast Aluminum - Makes up to 3-1/2 oz Patty Hamburger Mold 4-1/2 Inch Diamter Makes patties up to 3-1/2 ounces Adjustable for portion control Don't forget the Hamburger Patty Paper