Notes: 1. Do not wear on braces or hats. 2. If you are not satisfied with the fit, you can simply remodel as many times as you want. In order for the product to hold firmly in the mouth, a person needs to have some existing tooth structure. 3. This product is not a "denture" or "dental appliance". This item is only for enhancing your appearance. Installation Instructions: Place the tooth in a cup of hot (almost boiling) water for 1 minute. This will make them flexible and ready for customization. Using a mirror, place the dental covering firmly over the existing teeth. Press them firmly against your teeth, then tap the print material with your thumb behind your real teeth. Gently remove the teeth from your mouth after 30 seconds, then cool them in a glass of cold water. The impression material will turn white as it hardens. material: plastic Package includes: 1 set of dental veneers Note: Only by boiling water, the teeth can be soft and stick to the teeth.