Microwave egg muffin cooker helps you prepare breakfast sandwiches easily and inexpensively in the microwave! To use this microwave egg maker, just beat one or two eggs in the plastic egg cooker, add ham or sausage, close hinged lid, and microwave for one minute. Egg cooker for microwave is 10cm dia. Finished product fits an English muffin perfectly. Hand wash. 17cm L x 12cm W x 5.1cm H.