W.H.M.S Unique Circular Rolling Knife Material - The innovation rolling the knife blade is made of high quality stainless steel 42042, in line with environmental standards. The shell is made of high quality made of ABS, effective non-slip, feel good. Features - 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 (Note: The blade do not insert into the dishwasher, clean time too long easily to blade is dull) Applicable - 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) Quality Assurance - Thank you for purchasing our products, if the product quality problems, you can always return, we guarantee a 100% refund.(Gift: Hand Protection Appliance)