
How It Works
1. Attach to your phone like any normal phone case.
2. Learn the basic striking techniques (like swinging a hammer).
3. Feel ready anywhere you go.
STAY ARMED, STAY READY
You’ve trained. You know how to punch, strike, and defend yourself. But in a real-life encounter, strength and skill aren’t always enough. That’s why we designed the Sharktooth™ Phone Case - always with you, always multiplying your force.

FROM ONE MARTIAL ARTIST TO ANOTHER
Creator of the Sharktooth™, Author of "Breakthrough", 7th Degree Black Belt, and Father of Two — Preston Ducati, built this product for real-world defense.
See It In Action

What Students Are Saying
“The biggest reason I love this self defense tool is...I always have it with me! It is always ready to go in my hands. Super convenient, super simple, super effective! I am giving them as gifts to my family and friends this year. Self defense for everyone!”
Anonymous
Parent
“It is very convenient and practical, it helps keep me feel more safe, and looks like a normal phone case.”
Isabella D.
College Student
“The Hammer Defense system is a very complete tool that anyone can use with very little to no training. Its slim compact design makes it inconspicuous yet very effective! One of the best designs on the market! It's an effective self-defense tool that you can take anywhere.”
Carl W.
Self-defense instructor

Looking for a different case? Drop your request below.
Does your phone need a Sharktooth™ Self-Defense phone case and we don't have your model? Help us expand our lineup by letting us know which model you need. We're always looking to meet our customers' needs and bring you the best protection possible.