Made of heavy-duty, non-stick cast aluminum, The Better Burger Press is 25% larger than standard presses which leads to bigger burgers. Inside you'll find patented Flavor Pockets that enrich the cooking surface to produce overall better flavored meat. Perfectly cooked burgers can range in size from 1/4-lb., to 1/2-lb., to 3/4-lb. Diameter of burgers patties are 4.5". Dishwasher safe. BPA-free. 1-Year, 100% Gander Mountain Guarantee.