Type: Straight-out spring knife Brand: MICROTECH Micro Technology (imitation) Opening length: 22CM Closed length: 13.5CM Blade thickness: 0.3CM Hardness: 57 HRC Blade material: 440c Surface: Blackened Handle: Aviation aluminum alloy + abalone shell Net weight: 220 grams (whole knife) Gross weight: 300 grams (including packaging) Opening and closing: double action, direct push switch, automatic pop-up and retraction (the blade is relatively strong, only a slight shake) Packing: wear-resistant special tactical nylon set. Pocket Knife Holder: Switch Knife Holder Glass Striker: Tungsten Glass Striker.