this 11.5" diameter dome redirects rising heat and steam back down onto your food as it cooks. This means cheese melts almost instantly on burgers on the grill, and sunny-side up eggs become perfectly cooked. We love this for sauteeing onions and mushrooms, diner-style on a griddle too. Sturdy wire handle allows you to grab with an oven mitt or grill tongs. No-nonsense spun aluminum construction will withstand a lifetime of use in your kitchen.