Pro Knife with Slicing Guide is like 3 knives in 1! Cuts fast, secure and easy. The cutting guide can be adjusted to any thickness by loosening the screw on top of the knife. Once you have the desired thickness, simply tighten the knob to set the guide. Easy grip handle. Dishwasher safe, but hand washing is recommended to maintain its sharpness. Blade measures 13 inches long. Guide 5 inches long.