It's hard to make eggs behave in a frying pan. By adjusting the diameter of this ring (from 1 1/2" to 4"), you can encircle and cook your egg neatly in the size you want.
The ring sits evenly during cooking so the egg won't leak under it. Safe for use in a stovetop pan, oven or microwave up to 450°F (232°C), it is dishwasher safe and can be stored flat. Sold in pairs, they're a good way to keep eggs in place.