Ginsu Essential Series gives you high quality knives at the best possible value! This tomato knife is made from commercial quality stain and rust resistant 420J2 Japanese stainless steel that is well known for sharpness and strength and the serrated blade never needs sharpening! Uniquely scalloped dual edge prevents the tearing of food like traditional serrated blades; the result is a zero maintenance serrated edge that performs with the accuracy of fine edged professional cutlery! Limited lifetime warranty.