Just from what I've read on the internet (which is not much) people make it seem like you must clean these knives and take care of them or they will rust or get damaged.... I will put mine to the test!http://www.ebay.com/itm/HIGONOKAMI-Bluesteel-Brass-90mm-black-blade-/261063508334?pt=Collectible_Knives&hash=item3cc899016eSeul, Here is the one I bought and there are many options on ebay if you search 'Higonokami'
Weight is solid for what it is. Blade is insanely sharp. Much sharper then Sebenza. Very difficult to open it is very tight. This is a beautiful, no frills, minimalist EDC