The Blackcat 55 Tanto has an overall length of 9.4", a blade length of 4.5" and a total weight of 6.3 oz. This is an excellent knife for law enforcement, self-defense, or every day carry. Our spring assist line features high quality springs and are quick to open with the added ambidextrous thumbknob! Puma SGB tactical knives come with lightweight and durable textured scales in either Aluminum or G10. The black matte and stonewash finished blades are made of 3mm 1.4116 German Cutlery steel and have a Rockwell hardness of 55-57. The Alleycat family uses a partial serrated edge while our SW TAC features a seat belt cutter and glass breaker! All tactical knives feature ambidextrous thumbknobs and beltclips. When it matters, would you prefer German steel or Chinese steel?