(A/B) Full length: 23 cm Blade length: 93 mm Shank length: 138 mm Blade: 18 mm Blade thickness: 2.2 mm Blade material: 5 cr13mov Hard degree: 57 HRC Surface: drawing + black titanium Handle material: ABS Lock type: straight out note: (don't worry if the blade is stuck! -----------Hold the handle and pull out the blade. After the whole blade is pulled out, the blade works normally.) (C/D) Full length: 22.9cm blade length: 9.7cm blade thickness: 1.6mm blade material: D2 hardness: 59HRC blade weight: 204g rough weight: 287g surface: titanium plated handle material: zinc-aluminum alloy + sandalwood sheath: nylon lock: straight spring knife note: (don't worry if the blade is stuck! -----------Hold the handle and pull out the blade. After the whole blade is pulled out, the blade works normally.)