Measures 18 inches long and 2 inches wide at the widest point and tapers down to 1 and one-quarter inches.  Just test firing this unit into the air is often enough to stop an attacker. As the bright electric current pulsates between the test prongs and creates an intimidating electrical sound an attacker with any sense at all will be stopped in his tracks. If the sight and sound doesn't stop them a jolt from this unit certainly will!   Streetwise Stun batons are one of the highest quality brands available and come with a life time warranty.

• 800,000 Volt Long Stun Baton
  Rechargeable

The Streetwise mini stun baton is a self defense device which disrupts
the message the brain sends to the voluntary muscles. Simply touching
an attacker with a stun baton for three to five seconds will deliver a
high voltage shock causing loss of balance and muscle control,
confusion, and disorientation bringing him to his knees and making him
incapable of further aggressive activity. Full recovery takes about
five to ten minutes and there is no permanent harm.