The egg mattress topper is made of stainless steel for easy cleaning, durable and shatterproof, is dishwasher safe and requires no extra care. Perfect for use at home or in a commercial kitchen. The hole or circle of the eggshell cutter is just wider than the average of a teaspoon, the inner edge is a simple, smooth, non-sharp edge. Suitable for bringing when traveling, picnic. By lifting the weight, then releasing it to split the top of the egg. The intelligent egg cutter mechanism causes vibration and marks the shell. As an added bonus, the Boiled Egg Cracker features a sharp blade inside the dome for precise marking. You will no longer worry about the eggshell falling off.Inside Diameter: 3.5cm With these nifty kitchen tools, you can easily make egg custard, pudding, cupcake and even green herbal works of art for your family. Perfect gift for various festivals, come with a spoon, let you savor the egg immediately after removing its shell. Note: Due to manual measurement, please allow 0-3cm difference. Thanks for understanding. The monitor calibration method is different. The color of the product shown in the photo may be slightly different from the actual product. Please refer to our size before ordering. Delivery quantity: 1 piece