Healthy and Safe: Premium nonstick interior and exterior which is PTFE, PFOA and BPA free, no harmful substance release in high temperature Commercial Grade Quality: Made of premium durable 0.8mm Gauge Carbon Steel-Thick rolled edges prevent warping; the even heat distribution fundamental to optimal baking results; rust-resistant and sturdy for a long-lasting service life Use Easily:Size of each mini fluted pan:4.7in. at the top ;2.95in. at the bottom;1.69in. in height,suitable size for baking individual desserts; Fits in cooker/Instant pot/oven;Excellent nonstick coating provides easy release,quick cleanup,Less baking time and low energy consumption while reducing calories from baking spray and oils;Healthy for your daily baking use Unique Design for Multiple Uses:Oven safe up to 450~536 degrees Fahrenheit,ensures uniform baking and browning to enhance our unique and beautiful designs;the textured surface allows airflow for beautifully even overall results; Perfect for making individual desserts and fluted tube cakes for everyone, and is designed to make baking easier and more efficient, while measuring up to the high standards of serious bakers Satisfaction Guarantee:Mini tube pans let you get creative with your cooking and baking,but if you are not thrilled with its construction or performance,just contact us for quick solution,since your satisfaction is our eternal pursuit