This is a Damascus Santoku knife from Seki Magoroku, a line of knives by KAI (KAI Corporation)! The Damascus pattern is stylish, and it's a very popular product, being Kai's number one best-seller! There are no noticeable stains, but please understand that this is a used item. There is something that looks like rust on the blade on the left side, but it does not affect use. Material: Stainless steel clad composite Cutting edge: High-carbon stainless steel blade steel Side metal: Stainless steel Bolster and Butt Cap: Stainless steel Handle: Laminated reinforced wood Body size: Overall length 293 x blade width 46 x handle height 23mm Blade length 165mm, blade thickness 2mm Weight 158g If you have any questions, please feel free to comment!