This knife was minor changed of the HIGO X. In this model use carbon fiber with titanium handles. Also, it makes two kind of titanium colored that is Blue (BL) and Silver Gold (SG). And, it comes to the pocket clip. The ZDP189 blade can cut Manila rope about 1,000 times, and still slices cleanly through paper. This knife has a blade angle of 30 degrees near the half, and 24 degrees near the top with one continues, gradually reducing angle connecting them. This reducing blade angle is a product of Rockstead's continueing pursuit of superior sharpness.