A unique unbreakable defense tool, the Koga SD1 can increase the ability of the average person to defend himself several times over. The Koga can also function as an aid in leverage when obtaining joint locks or submission holds. Virtually unbreakable, it's also highly effective as an impact tool and magnifies the effect of hand blows while minimizing the likelihood of permanent injury.

Koga SD1 Technical Specs:

• Overall Length: 7 1/2"
• Thickness: 1 1/5"
• Material: Structural Nylon
• Weight: 4.1 oz.