Quality product, beautiful and with good ergonomics as the handle allows you to press down on the wheel without the risk of getting cut. The diameter of the wheel is 70mm, which is a good size for most uses. The handle is indeed made of stainless steel, it is not magnetic, unlike the wheel which is made of carbon steel, more suitable for blades. The product is made in China and I mention this because a similar product with a plastic handle is half the price, it is a product from Italy and you can find it in a large supermarket chain.