Spyderco C103GP P'Kal The P'Kal is a martial arts genre and a collaborative design Shivworks. The P'Kal is carried in reverse grip with the sharpened edge facing inward toward the user. Protruding from the blade's spine is an Emerson removable Wave deployment feature that catches the pocket's edge when drawing the knife, opening the blade in the same motion. -Amidextrous tip-up clip. -Patented encased Ball Bearing Lock. -Screw construction. -Flat-ground blade. -Made in Golden CO USA. Blade length: 3 1/4". Closed length: 4 3/16". Overall open: 7 7/16".