Chef'sChoice 450 Diamond Hone Manual Straight Edge Sharpener 2 Stages for sharper, longer lasting straight edge blades 100-Percent diamond abrasives for the fastest manual sharpening Precision roller guides ensure accurate angle control for foolproof sharpening and razor sharp edges Sharpens entire edge tip to bolster Perfect for the kitchen, tackle box, toolbox or glove compartment. Dishwasher safe. Easy to use right- or left-handed; Made in the USA <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.