A USA Pan 6" round cake pan. Aluminized steel with Americoat silicone nonstick. Baking surface 6" x 6" x 2"; outer 6.5" x 6.5" x 2". Ridged bottom; steel-wire rim. Oven-safe to 450°F. Silicone, nylon, or wooden utensils only. Limited lifetime warranty. USA Pan's FAQ lists Americoat as a silicone coating made without PTFE, PFOA, PFOS, PFAS, and BPA.
Between the 4" and the 9". Same pan family.