The Messermeister 9" Translucent Imperial Blue Chef's Edge-Guard is an ideal fit for chef's knives or wide blade knives 9" in length or less. Messermeister invented the hard plastic Edge-Guard and it is recognized as not only the original edge protector, but by far, the finest quality and the most functional. If your knives are not stored in a block or you carry them around in knife luggage, edge guards are a must for the knives you want to take care of. Hand wash only. Made from PVC. Two blade entry notches. Lifetime manufacturing warranty.