Material---This is made of stainless steel, with these sharp and sturdy stainless steel cutting wires, you can slice the eggs easily, smoothly, and not will not cause the cutting lines loose. Easy to Operate---What you need to do is place egg cutter on the egg and press to fix it before cutting, you can separate the egg topper, then remove the rest of egg shell easily by hand Suitable Dimension---each egg topper cutter is approx 3.2 x 2.2 inches in length and width, which is suitable for most eggs Kitchen Egg Shell Opener---The eggshell cutter has a simple appearance. It is portable and easy to store. Fits most egg sizes. Place the egg in the egg slot of the egg opener, press the switch hard, let the teeth buckle the egg, and rotate the egg opener. Great Gift For Any Home Cook---Searching for a gift for a friend or family member who loves hard and soft boiled eggs? If so, this nifty cooking tool is the perfect choice. It will save them loads of time and effort in the kitchen.