The Boker Plus K-Bit, designed by Newton Martin is the ultimate in compact Karambit knives. This compact companion can be worn discreetly using the Kydex sheath and ball chain. The unique handle gives you many different options for use and above all, gives you an amazingly soid grip. The 5mm thick blade is built of titanium coated 440C stianless steel. This is the perfect backup knife. SPECIFICATIONS: Overall length: 4" Blade length: 1 5/8" Weight: 1.5 oz. Blade material: 440C