AKC X-Treme Shadow 9" Snake Wood Stiletto Automatic Knife 440c Polished Bayo. To unlock the blade, simply press the top bolster upward, and the same action is repeated for closing it securely. Overall length: 23cm – 9" Blade Length: 9.6 cm – 37.8" Blade thickness: 3mm - 0.12" Weight: 108 gr-3.81 oz Blade Material: 440C Steel mirror Handle Material: Snake wood Made in: China