Features: FITS TO THE SHAPE OF YOUR MOUTH: One size fits all. Fits a range of mouth shapes and teeth sizes. Our mouth guard shielding is suitable for upper and lower teeth. For those rare-cases that require a smaller fit, simply but carefully trim the out edge of each side. TEETH PROTECTION: The portable mouth guard shielding can help against regular, persistent teeth grinding which can cause discomfort and wear to your teeth reducing the need to go to the dentist. MULTIPLE FUNCTIONALITY: The mouth guard shielding offers 3 different applications. Teeth Grinding protection, sports injury reduction and also can be used as a teeth-whitening tray. TIGHT & RETENTIVE GRIP:The mouth guard shielding moulds to your teeth for a comfortable fit. The mouth guard's thermo-plastic material can be adapted by submerging in boiling water then placing in the mouth to shape. Easy to Wear & Sleep Improvement: This anti-snoring mouthpiece and anti-snoring mouth guard are easy to wear and can be adjusted for a personalized fit, effectively enhancing your sleep quality. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Material: TPE. Package List: 1/2/3PCS Advanced Anti Snoring Device