Wusthof  1000/3000 Grit Fine Whetstone Ceramic construction 1000 and 3000 grit sides Easy to use Helps achieve best sharpness for all of your Wusthof knives Simply submerge in water prior to use for optimal results <a href="https://www.amazon.com/b?node=14770868011"> International products </a> have <a href="https://www.amazon.com/gp/help/customer/display.html/ref=nav_cs_help?ie=UTF8&nodeId=202045290"> separate terms, </a> are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Manufacturer warranty may not apply <a href="https://www.amazon.com/b?node=14770868011">Learn more</a> about Amazon Global Store.