This may look like a standard keychain, but it a specially made self-defense tool. Total length is just a little bit over 11 inches. Ball head thickness is 1.5 inches and the stainless steel ball bearing inside is 1 1/8th inch. This product is handmade locally by hand using all American made products.
Also known as a Tropo this tool can be used in a variety of ways which allow it to be implemented without projection of force.