12-cup muffin pan, commonly used for baking muffins, cupcakes, and other similar treats. It typically features 12 individual cup-shaped depressions to hold batter and help baked goods maintain their shape during cooking. Muffin pans come in various materials, including metal (often with a non-stick coating), silicone, and sometimes ceramic or glass. The dimensions of a standard muffin pan are approximately 10.5 x 14.5 inches, with each cup being around 3 inches in diameter and 1 inch deep. Different sizes are available, such as jumbo or mini muffin pans, depending on the desired size of the baked goods.