The Godfather auto knife by ProTech is definitely a classic. This edition, the PT900, has a special grey aluminum handle with black G-10 inlays. The blade is a satin finished, plain edge. The blade is 154-CM stainless steel and is heat treated to 59RC. This amazing auto knife represents the influence of original Italian "Stilletto" style auto knife and Pro-Tech's modern coil spring precision. Blade: 154-CM Stainless Steel, 4" Long Blade, .125" thick, 59RC Handle: T6-6061 Anodized Aluminum, G-10 Inlay, Black, .485" thick Open Overall Length: 9.6" Closed Overall Length: 5.56" Weight: 4.0 ounces