Lutz Quick Change Heavy Duty Utility Knife and Plastic HolsterThe Lutz #357 Quick Change Utility Knife comes in Hi Vis Yellow or Blue. It has a specially designed holster for easy use. It's a heavy duty retractable utility knife designed for reliable and comfortable use. Excellent use for carpet and shingles due to its heavy duty premium quality. It has 3 heavy duty replacement blades stored inside the knife. The safety nose overlap on the top and bottom of the knife is a key safety feature, so the blade won't