SAFE MATERIAL: 3 1/2 inch round, this sandwich sealer is made of high quality stainless steel, smooth and not easy to stick to food scraps. It is food-safe certified and kid-friendly. FUN FAMILY INTERACTIONS: Enjoy a fun lunch with your kids using sandwich sealers and knives. Inspire picky eaters to eat their sandwiches. You can make your own non-breakable items at home and fill them with whatever you want. The possibilities are endless. SAVE MONEY AND TIME: Have fun with DIY pastries, jelly sandwiches, hamburgers, cakes, eggs. Simply place the filling and sauce between two layers of bread or dough, then cut and seal. Use our cut and seal combo to create your own. Whip up your kid's appetite and sandwich knives won't make lunches cumbersome or expensive. ADJUSTABLE: Our sandwich maker can easily press and control the thickness of the snack, and it is easy to demould. With this sandwich maker, the formed patties burgers, sandwiches and other foods are not easy to loosen. EASY TO CLEAN: The cutting and sealing sandwich knife is lightweight and easy to use, and the quick clearance makes it easier to clean the blade after use. Dishwasher safe