Get one of the highest levels of protection with our chosen brand of mouthguard, generally fits smaller kids from 4 - 6 years old. Level 4 in the Self-Fit range. Superior comfort, with a safe and secure ultra-fit retention. Suitable for all contact sports, including Rugby, Hockey, MMA, Boxing, and American Football. Easy-to-use single compression cage and patented fin technology accurately moulds to the teeth and gums. Safeguard your smile with ultra-impact resistant dual layer construction.