The rock by Starfrit 10-6/10 in. X 19-1/2 in. Reversible grill griddle can be used on the grill, on the stovetop, or in the oven. The unique rock.tec manufacturing process uses small metal pellet impact technology to modify the surface to form an ultra durable rock-like finish. The result is an outstanding release performance, 3 times better than traditional nonstick cookware. Included: 1 10x18 Inch Griddle(s) Features: Oven Safe, Non-Stick, Even Heating, Dishwasher Safe, Scratch Resistant Cooktop Compatibility: Gas, Electric, Ceramic Manufacturer Warranty: 1 Year Limited Maximum Temp (f): 450 Degrees F Base Material: 100% Aluminum Care: Dishwasher Safe Material: Aluminum Country of Origin: Imported