The Viper Tec VT-DON is a one of a kind switchblade and OTF all in one! The DON OTF series is a stylish automatic knife collection from Viper Tec Knives. This Italian style made automatic knife features a double-action firing mechanism. You simply slide the front-loaded button forward to activate the blade, and pull it back to retract the blade back into the handle. The DON is perfect for collecting or light cutting chores. Overall Length: 9.00" Blade Length: 3.75" Blade Style: Bayonet Blade Grind: Flat Blade Material: Stainless Steal Finish: Satin Edge Type: Plain Handle Length: 5.25" Handle Thickness: 0.75"