teeth whitening kit professional teeth whitening accelerator light with build-in mouth tray furein smile product description <b>specification:</b> <br><b>kit content:</b> <br>1x teeth whitening light <br>1x built in mouth tray <br>6x teeth whitening gel <br>1x shade guide <br>1x instruction manual <p><b>suitable for :</b></p> <p>suitable for anyone who have had their teeth discolored from smoking, tea, coffee, wine, genetic yellow teeth or aging yellow teeth.</p> <b>usage:</b> <br>1.brush and floss your teeth before continuing . <br>2.place a small line of gel (approx 0.3ml per layer) in the front portion of both top and bottom sides of the tray to cover your front 6-8 teeth . make sure you do not over load the tray as the gel may irritate the gums . <br>3.insert the tray into your mouth carefully. switch on the light for 15-25 minutes <p>after completing the whitening session , remove the tray carefully. rinse your mouth and wipe any excess gel away . rinse the tray thoroughly and store in cool dry place until further sessions.</p>