American Buffalo Knife Abkt Cattlemans Cutlery Side Winder 3.5 Assisted Opening. Equipped with ABKT's proprietary assist opening design this knife has performance and safety at the forefront. Specifications for American Buffalo Knife Abkt Cattlemans Cutlery Side Winder 3.5" Assisted Opening: Manufacturer: American Buffalo Knife Blade Length: 3.5 in Closed Length: 4.25 in Blade Material: Alloy Steel Overall Length: 7.75 in Handle Finish: Black Matte Handle Color: Black Quantity: 1 Package Contents: American Buffalo Knife Abkt Cattlemans Cutlery Side Winder 3.5" Assisted Opening