The innovation rolling the knife blade is made of high quality stainless steel in line with environmental standards. The shell is made of high quality made of ABS, effective non-slip, feel good. Ergonomic design allows you to use minimal force to move cut various foods, avoid excessive force and sprained wrist. The biggest feature is that it allows you to cut a variety of food, rapid completion of a dinner, greatly save your time. Durable – It is a good helper for your kitchen, put the blade clean and air dried. Housing portion can be opened, then upside down on top of the dishwasher The Rolling Knife can cut a variety of foods, such as beef, vegetables, pizza, cakes, fruit (recommend the use of plastic and wooden cutting boards, you can make blades more durable) Package contains = 1 Pc Circular Knife Cum Pizza Cutter. Material =? Plastic. Size = 15.5 x 15 Creative Stainless Steel Wheel Rolling Knife Blade Non-slip Circular Knife Kitchen Cooking Tools Made from stainless steel blade, which is super hard, high-density, anti-bacteria, anti-fouling, non-toxic and non-corrosive. Soft plastic handle, easy to use and cut, save your time. Perfect for cutting the fish, fruits, vegetables, cake and pizza etc. Removable, easy to clean.