This is the Survival Keychain that I carry everyday. One of the reasons I love this Keychain is because it can be used for many different purposes. First, it is great for self-defense. There’s a metal ball bearing in the inside so if you hit someone with this it could do serious damage. Second, this Keychain is covered in 5 feet of paracord, which can be used to tie things together and to escape rope, zip ties, and duct tape.