PROTECTOR 18 KNIFE ROLL 3IN-5IN KNIVESProtector 18 Knife Roll Holds 18 - 2", 4", 5" Knives - Plain Grey - Silicone Treated Protects knives against rust, dirt and scratches. The cotton's natural wicking ability continually draws moisture off the weapon making them ideal for yearing ability continually draws moisture off the weapon making them ideal for year round storage.round storage.