Triple Kill Ninja Defense Spike. The three edges on this defense spike are perfectly complimented by a pyramid tip. The steel used to make this blade is a high strength stainless steel. It is both durable and accurate. Balance is necessary for a good defense spike. This particular throwing knife is crafted from one solid piece of hard steel and individually perfected until it achieves an accurate balance. The handle is made with a solid grip and each pommel has been weighted and smithed accurately. Each of these Triple Kill Defense Spikes comes with it's own sheath and full ankle/arm strap. It allows the holder to keep the throwing knife secured to the ankle or arm with the sheath. The strap use a high-strength velcro and thick elastic to secure it in position. Slap on some of these and have your entire gear loaded for defense. Stealth and perfection are balanced into this Triple Kill Ninja Defense Spike and leg & arm sheath combo.