The Boker Applegate Combat Boot Knife features a 4 3/4" dagger blade built for real action. The 440C stainless steel blade is hollow ground on one side. Each knife is serial numbered. Includes versatile Kydex sheath with large Tek-Lok system for versatile carrying options. SPECIFICATIONS: Overall length: 9" Blade length: 4 3/4" Blade material: 440C Handle material: Fiberglass Derlin