Hamburger Press, heavy-duty, 1/4 lb. & 1/2 lb., interchangeable 4″ and 5″ press plates, manual single-lever operation, with built-in patty paper holder, include 4″ (100mm) & 5″ (130mm) patty papers (500 each size), heavy-duty anodized aluminum construction with stainless steel press bowls and press plates