Wusthofs locking blade guard will hold up to 10 inch knives. This product is dishwasher safe and made in the USA. To safely secure a knife, simply place the blade inside the case on the rubber tabs, then close the case and press the locking tabs into place. ? Rigid, durable guard fits up to 10 in. cook’s knife. ? Blades lock in until released. ? Perfect for professional or home use. ? Excellent protection for drawer storage. ? Made in the USA.