The muffin liners is grease-proof and non-sticky, high temperature resistant, anti-skid and waterproof, it's oven safe, and can withstand temperature up to 425 degrees fahrenheit. ELEGANT & ATTRACTIVE LOOKING: The shape of the tulip cupcake liners decorate your food more professional, classic and wonderful looking comparing with ordinary cupcake liners, which can leave a deeper impression on your friend or guests, make food more delicious & elegant.