Mantis Jyro Knife 4in. Closed MAN. The M-VX stainless steel blade on the Mantis Jyro Knife will stay sharp for incredibly long periods of time. The 420 HC handle on the Mantis Jyro MU5 Knife will make sure that you have a good grip while in use. For a great way to slice your way through any cutting task choose the Mantis Knives Jyro MU5 Knife. Specifications for Mantis Knives - MU-5 Jyro: Overall Length: 5 1/2" Blade Length: 2" Blade Material: M-vX Blade Style: Spherical Handle Material: 420HC Lock Style: Frame Lock Carry System: Pendant Triple Detent Sheath Weight: 4.1 oz. Features of Mantis MU-5 Jyro Folding Knife: M-VX Stainless Steel Blade Frame Lock 420HC Handle Spherical Blade Style Can be opened with the slide of the thumb and worn around the neck or on a belt with the revolutionary pendant sheath Package Contents: Mantis Knives MU-5 Jyro Knife Pendant Triple Detent Sheath System Mantis MANMU5: Jyro Knife 4in. Closed