Model: Bulldog. Handle Material: Bulldog. Opener: Thumb Stud. Operation: Thumb stud opening, easy to operater. Blade Length: 3″/76.2mm. Blade Thickness: 0.11″/2.8mm. Blade Material: Nitro-V. Blade:Nitro-V Steel (Germany) with a black PVD coating for enhanced toughness, hardness, and corrosion resistance.