Description
*1 Piece only.
- Before use, check if the size is fit. If not, make some trimming based on your need.
- Boil water to Celsius 80.
- Soak it into the water
- Soak it for 10 to 15 seconds
- Install it into your mouth, bite it tight not deep, and support it tight with hand and tongue for 30 seconds.
- Take it out and soak it into cool water to make a forming.
For double-face mouth, while making a forming, do not take out the insert in the air hole otherwise the hole will shrink and get blocked. After the forming made, take out the insert from the hole while use















Reviews
There are no reviews yet.