This is normally a practice rope that is used instead of the traditional chain with weighted ends. I have experimented with different designs and have come up with a design that is very useful for self-defense and for practice. As a rope design, this is less dangerous but yet very effective. It may not be classified as a weapon, if carried on your person or transported your vehicle. It could easily be used for a “Yoga” stretching rope or as an article of clothing. The ends are extra strong and will withstand swinging and hitting objects — These can be made as a DIY project. They are also for sale for $15.00 with free USA shipping – See the Shop link.