Piranha Knives Auto X Automatic Folding Knife 3.25in 154CM Black Oxide Black Aluminum Handle. Aluminum handle. Lanyard hole. Pocket clip. Cross pattern milled handle. Specifications for Piranha Knives Auto X 3.25in Automatic Folding Knives: Manufacturer: Piranha Knives Blade Length: 3.25 in Blade Material: 154CM Stainless Steel Knife Application: Folding Blade Handle Material: Aluminum Lock Type: Button Lock Opening Method: Automatic Closed Length: 4.13 in Package Contents: Piranha Knives Auto X Folding Knife Piranha Knives P-14BKT: Auto X Folding Knife 4.13in Closed 3.25in Black Oxide 154CM Blade Black Aluminum Handle