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It's incredibly lightweight and I feel safer carrying this than pepper spray

or a sound grenade (we have a toddler and it makes me nervous at the thought of

carrying those things with him next to me.)

Excellent self-defense tool. Would recommend.

This is a beautiful, lightweight key chain! I love the design and colors! Highly recommended!

I tested it out just for kicks. I managed to stab clean through the padded envelope it came in... so there's proof that it actually works.

I like the size of it, and it fits comfortably in my hand.

I also like that it is legal in the U.S. and that I received it quickly.

It’s not only pretty, but functional. I feel better having it.

Watch Our Videos

See how easily and effectively you can use MUNIO to protect yourself! Discover simple and instinctive solutions to common "street attacks".

yModel holding MUNIO Self Defense Keychain in AsSeenOnTV commercial

MUNIO Self Defense Workshops

Our workshops are a safe, fun and exciting experience that combine self defense education with hands on practice using MUNIO.

MUNIO Self Defense Workshop with the inventor Phil Ventrello

Custom Branding

Promote your company or cause and your care for personal safety. What an awesome and truly functional marketing item!

Custom Branded MUNIO Self Defense Keychain samples

Subscribe to our FREE Self Defense Video Series

Simple Self Defense Moves Everyone Should Know is a series of 10 Videos that go over some basic self defense tips, and simple moves against a variety of common street attacks.

Subscribe to our Free MUNIO Self Defense Video Series