mysmile moldable 4 in 1 mouth guard professional custom fit dental night guard 6-pack 2 sizes kit with travel hygiene case and molding stick for teeth grinding athletic protection and whitening tray mysmile <b>features:</b> <br>- made of high-grade dental material, no bisphenol-a, no latex, no peculiar smell, and no pigments <br>-easily be molded in hot water, can be used in daytime and nighttime with all-day protection <br>- suitable for sports with light contact or worn with a helmet and face mask, will sure to provide a comprehensive protection <br><br><b>effect:</b> <br>1. great support in teeth breakage, damage, and bruxism (teeth grinding) prevention; <br>2. help relax jaw muscles, prevent teeth bite, grinding, clenching and alleviates problems that may cause potential dental injury; <br>3. improve bad sleep habits, ensure continuous sleep throughout the night