Rachael Ray Oven Lovin' Non Stick 12-Cup Muffin & Cupcake Pan Carbon Steel New. Item Dimensions Of 16.25” Long, 10.5” wide and 1.5” high. DURABLE MUFFIN AND CUPCAKE PAN: This 12-cup nonstick muffin and cupcake pan is made from heavy gauge steel for everyday use; sturdy construction resists warping ENHANCED NONSTICK BAKEWARE PAN: Muffin pan features long-lasting nonstick for excellent food release and easy cleanup EASY HANDLING MUFFIN PAN: Grippy pan handles offer a confident grasp SOME LIKE IT HOT: Muffin pan is oven safe to 500 degrees F for making savory single quiches and mini casseroles.