Wash by hand and dry with a soft cloth immediately after use Knife Type:Cleaver Feature:Eco-Friendly Material:5Cr15 Stainless steel Size:as picture Size 1/Size 2 length: 29.3 cm/29.3cm Blade length: 15cm Blade width: 4.9cm/4.9cm Blade hardness: 58-60HCR Blade thickness: 2.4mm weight: 222g/204g Item Include: 1pcs knife NOTE: 1.The entire process of production of this knife is completely manual. 2.The surface of the forge knife is rough not as smooth as the knife produced by machines, but it did show the characteristics of the forging knife. 3.Please allow slight measuring deviation due to manual measurement.