Cold Steel Knives: Cold Steel Koga SD1, CS-91K
The Cold Steel Koga SD1 is a self defense tool, designed by Bob Koga, that bridges the gap between empty hands and a baton. The Cold Steel Koga SD1 concentrates and magnifies the effect of hand blows, while minimizing the likelihood of permanent injury. The Koga SD1 features single piece structural nylon construction. The Cold Steel Koga SD1 is 1 1/5" thick, 7 1/2" overall, and weighs 4.1 ounces.
Cold Steel Knives: Cold Steel Koga SD1, CS-91K
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