features The diameter of the side engraving is engraved on each circular cookie cutter in inches per centimeter. No more guessing, when using a cookie cutter to bake, you always know which size is which size. The round biscuit knife set is made of stainless steel, which looks magical and easy to clean. It can be washed with a dishwasher and is rust resistant. High quality materials make the biscuit cutting machine sturdy and durable, maintaining its shape and durability. Widely used include cutting cookies, scones, pastries, dough, soft candy, meat patties, muffins, pies, snacks, donuts, vegetables, English muffins, bread, and Italian dumplings. Used for baking, cooking, frying eggs, or making pancakes. {Safe Use and Dishwasher Safety} Features a crimped top edge design to protect fingers during cutting. Easy to clean, dishwasher safe is a great wedding or housewarming gift or any occasion gift, a great and affordable gift Specifications Material: aluminum alloy Specification: 4 inches Specification: 6 inches