This ZAP Stun Walking Cane is a great self-defense device for the elderly or for anyone who needs support while walking. This walking cane measures 32 inches and can be easily extended to 36 inches to accommodate users of different height. When threatened, you can either use the built-in super bright LED flashlight to blind your attacker, or deliver a shocking 1 million volts of electric power that will cause your attacker’s muscles to lose control, effectively immobilizing him for 5-10 minutes. Having a length of 32 to 36 inches also means that you can defend against your assailant from a safe distance away. This stun walking cane also comes with a built-in rechargeable battery.