The Messermeister 12" Chef's Edge-Guard is an ideal fit for chef's knives or wide blade knives 12" in length or less. The exact dimensions are 12.5" long by 1.9375" wide. Messermeister invented the hard plastic Edge-Guard and it is available in various widths and lengths. Edge-Guards by Messermeister have been recognized as not only the original edge protectors, 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. Not dishwasher safe.