3506 6" Round Cake Pan with Removable Bottom (straight body) This removeable center tube is prefect fit in with our product No. 3408- 8" cake mold. Made of high-quality aluminum, which is sturdy and durable and not easily deformed. This tube is great for angel food cake and chiffon cake. Material:Aluminum Alloy (Anodized) Size:6" (15.3*7CM) Temperature Resistance:Up to 250°C