Your kids mouthguard is gross! Keep it clean. Improve your game. GuardSaver is a washing machine for athletic mouthguards - only smaller and cooler looking. It's a fast, convenient, and natural system for cleaning athletic mouthguards. Good for all sports where mouthguards are required and recommended (and those where it is becoming more common and popular. Football, Hockey, Basketball, Soccer, Lacrosse, Field Hockey, Wrestling, Boxing, MMA, Martial Arts, Softball, Baseball, etc. Believe me, this is better than your current cleaning regimen (never!) and even kills viruses that keep them off the field and ice (yes, even THAT virus!) 100% Natural. A fresh & clean mouthguard is more likely to be worn and keeps them healthy - which means more proactive & play time and improved performance!