This whetstone was purchased a few years ago and used only about three times. It can be used on stainless steel, titanium, and ceramic blades. It is USED, so there are water stains, but there is no other noticeable damage. [Note] The photo on the 8th page is from the shop's website, and the actual product does not come with an outer box or instruction manual. [Specifications] ● Material: Whetstone: Diamond Base: ABS, PC, Stainless Steel ● Grit of the rubber whetstone: #360 / #600 ● Size: Approximately 180 x 87 x 36mm ● Approximately 270g ● Color: Black & Silver Reference Price: ¥3278 ※ Price negotiation not possible