Flashing Color Selection: Red, Blue, Green, Yellow
Number of Lights: 4
Package Includes: 1 x LED Flashing Light Flash Mouth Guard Piece (Built-in AG13 button battery (not included))
How to use:
With the grooves down, put the mouth piece on your lower teeth.
Bite the piece, and press the button with your tongue to turn on/off.
Note: There is a 2-3% difference according to mouth measurements. Please check the measurement chart carefully before you buy the item. Due to the difference between different monitors, the picture may not reflect the actual color of the item.