?After-sales guarantee?: If there are any product and packaging damage problems with our products, please feel free to contact us, we are committed to your satisfaction. ?Affordable and easy to clean?: This product is affordable and very convenient to use and can be reused with a simple cleaning to ensure your teeth are in good clean condition. ?Use scenario?: It is good to use either at night while sleeping or during daytime exercise. Not recommended for protective use when teeth are subjected to strong impact. ?Use gender age?: Both adults and kids, both men and women can use our product. ?Use function?: This teeth grinding guard can protect teeth, gums and TMJ, help users to stop grinding teeth and reduce snoring to improve sleep quality. It also has a role in teeth whitening.