ZAP Blast Knuckles Extreme provide you with an easy way to protect yourself while on the go. The rubberized contour grip ensures you'll have full control while the 950,000 volts of stun protection await their call of duty. Set in an intimidated spiked design, the four sharp electrodes add a layer of protection that on their own allow a serious blow to your attacker should you choose not to use the stun feature or the batteries need replacing. The spikes also offer you during a self-defense situation a way to collect DNA evidence that may prove useful to later present to the authorities. Use while jogging, walking alone at night, or exploring unfamiliar places for a convenient and instantly accessible way to keep yourself safe from the unknown.