REMOVABLE LOOSE BOTTOM: Cake pan is designed with a removable bottom which allows you to easily take your cake out of the cake pan as well as making it much easier to clean. ANODIZED ALUMINUM MATERIAL: Square cake pans are made of high quality anodized aluminum alloy with good heat conductivity and rust resistance, conducts heat quickly and evenly, helps you make perfect fluffy cakes. SAFE & RELIABLE: Anodized surface ensures non-stick with no additional metals or chemical coating. It contains no chemical additives, dyes, PTFE or PFOA, and nothing will transfer, peel or flake into your baked goods. MADE TO LAST: Aluminum cake pan is heat resistant, corrosion resistant and durable, will not easily deform or break, have a long service life. It is oven and microwave safe. SCOPE OF APPLICATION: This non-stick square cake pan measures 22 x 22 x 7.6 cm / 8.7 x 8.7 x 3 in in size, is perfect for baking various cakes including cheesecakes, mousse, chiffon, brownie and frozen desserts.