Correct Emily: Practice smiling every day to make smiling easier and more natural behind the lips Facial fitness exercise: This product can stretch the muscles at the end of the lips, which can help you have a brighter smile and a good impression. Mouth muscle support makes smile more natural. Our products are very suitable for stewardesses, service workers and expressionless people Use anytime, anywhere: whether in front of the mirror, in the bath or at any other convenient time every day, it can help shape the overall shape of your mouth Made of silicon: no harm to your health. Food grade silica gel material is used. This is just a physical exercise. Etiquette: safety, hygiene and safety. Perfect gag party gift. Birthday, Christmas, wedding, Mother's Day, Father's Day, anniversary and other gifts Packing list: smile orthotic device (green+orange) We only sell the first item in the picture, not other items in the picture. Due to the difference of different monitors, the pictures may not reflect the actual color of the product. Due to manual measurement, please allow minor dimensional errors.