... you present a perfect round fried egg. No need for grease, fat, oil, margarine, butter because the adjustable Egg Ring is 100 ... grease, fat, oil, margarine, butter! Nothing sticks to the Teflon® adjustable Egg Ring, its magic!Versatility of UseNon stick / no fat ... for use in all ovens - gas, electric, AGA, fan, hot-air, microwave- heat-resistant up to 260°C (500°F) - excellent ...