Specification: Material: Silicone Feature: Made of food grade environmentally friendly silicone, safe and non-toxic. Improve sleep quality. Light in weight. Comfortable to wear. Convenient to carry. Easy to clean. How to use it: 1. Place the Tongue Anti Snoring Device in your mouth i.e., it should rest between your front teeth and the lips. The protruding bulb is outside of your mouth. 2. The side with the small cut on the Tongue Anti Snoring Device should go to the bottom side of the mouth. 3. Squeeze the bulb to let out air. 4. Place your tongue in the tube and release the bulb. This creates suction vacuum and your tongue attaches to the bulb area of the Tongue Anti Snoring Device. 5. Take down: Only Squeeze the bulb Package included: 1 x Anti Snoring Tongue Device Note: Please allow 1-5mm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store