The Dive Rite Cold Water Z-Knife is the Preference of Cold-Water Divers Wearing Gloves. The Handle is Large-and-Easy to Grip when Thick-Gloves are used. Sharper than a Standard Dive Knife, the Cold Water Z-Knife is preferred for Cutting thru Monofilament and Braided Line. With a User-Replaceable Blade, the Cold Water Z-Knife includes 2- Replacement Blades.