From the manufacturer's website:
The revolutionary Mueller Matrix® mouthguard by OPRO® unites the world's most advanced lightweight cushioning materials, buffer zones and OPROfin patented custom fit technologies.
- Lightweight impact absorbing materials using OPROfin™ technology
- Comfortable secure fit
- Open Front Palate for superior speech and breathing
- Adult - Age 9 and Up
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.