This unit is two weapons in one. The badass is made of aircraft aluminum and measures 9 3/8 x 1 7/8. Because of the strong material you could use this as a weapon and strike or swat at an attacker. Or you can shock the attacker by pressing the hidden probes against the hand, arm, body of the attacker and press the button that will send 85 million volts into the attacker. This will stop the attacker. And finally you can flash the 120 lumen power light into the face of the attacker which should temporarily blind him. No batteries are required since the unit is charged in a wall socket. The unit carries a life time warranty by the manufacturer, Stun Master. Comes in black only.