Kagemusha "Secret Ninja" Fixed Blade. Black Textured Polymer scales and Black sheath. This offering from Katz has a great and hefty blade design. These fixed blades feature removable / interchangable handle scales and a quality leather open top sheath. Made in Japan for Katz of Arizona XT 80 Stainless Steel - Blade Length: 3.5" - Overall Length: 8.13" - Weight: 6 oz. - Friction Fit Leather Sheath XT80 Stainless Steel is a proprietary type of steel used by Katz. XT80 tests at 58-59 on the Rockwell "C" scale. With the resilience of this excellent Stainless Steel, it hold and retains an edge to the high standard for which Katz is known for.