Insert blue handle into breath hole.
prepare hot water ( about 70-80 degree ) and put stop snoring mouthpiece into hot water.
keep mouthpiece in water about 15-25 seconds, then take it out using the insert handle.
gently shake off the excess water and insert mouthpiece in to mouth. adjust mouthpiece to a comfortable position and then bite on, using your fingers to mouthpiece around the front and sides to make a good mold of your teeth and gum shape.
remove mouthpiece, after you feel that all your teeth have left good impressions on it.
put the shaped tray into cool water to fix your stop snoring mouthpiece.