A USA Pan 12-cup muffin pan (SKU 1200MF-1). Aluminized steel with Americoat silicone nonstick. Baking surface 2.75" x 2.0625" x 1.375" per cup; outer 15.75" x 11.125" x 1.375". Ridged cups; oversized rims. Official page lists muffins and cupcakes with or without paper liners, plus taco cups and individual lasagnas. Oven-safe to 450°F. Hand wash; official use-and-care says do not dishwasher and not to use cooking spray. Silicone, nylon, or wooden utensils only. Limited lifetime warranty. Made in the USA from globally sourced materials. USA Pan's FAQ lists Americoat as a silicone coating made without PTFE, PFOA, PFOS, PFAS, and BPA. Specs from USA Pan's 12-cup muffin pan page.
A standard dozen muffin pan. Liners are optional with this coating; we still use them for cupcakes that get decorated.