Not suitable for braces or hats. 2. If you are not satisfied with the fit, you can reshape it multiple times as needed. In order for this product to remain firm in the oral cavity, a person needs to have some existing dental structure. 3. This product is not a denture or dental device. This product is only intended to enhance your appearance.Installation instructions: Place the adhesive in a cup of hot (almost boiling) water for 1 minute. This will make them flexible and ready for customization. Using a mirror, firmly place the braces on your existing teeth. Press them firmly onto the teeth and gently tap the impression material with your thumb behind the real teeth. After 30 seconds, gently remove the teeth from your mouth and cool them in a glass of cold water. The embossing material will turn white after hardening. Color: As shown in the picture Packaging content: 1 * Upper dental cover Attention: Due to manual measurement, please allow for a slight error. Please make sure you don't mind before bidding. Colors may vary depending on the monitor, please understand. Hello, please pay attention to your shipping address when purchasing products.If your delivery information (such as name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly