Rose Levy Beranbaum’s Heavenly Cake Strip evenly bakes cakes that are moist, inside and out, without doming and over browning Made from European-approved silicone; reusable, durable, heat safe (to 500-degrees Fahrenheit); rated #1 by America's Test Kitchen 2012 Best Reviews Insulates metal cake pans for even heat distribution so cake sides and centers bake equally; no more dried out edges or raw centers Slides on and off easily; simply turn cake pan upside down and slide the Cake Strip around the sides of the pan Fits 9-inch round and 8-inch square cake pans; do not expose to direct flame, broiler, or grill; non-stick and dishwasher safe for easy cleanup