2 x THERMOSETTING OVERLAY MADE IN USA ORIGINAL Important! SET OF OVERLAYS 2 PIECES! 2 pads are needed for the FULL whitening treatment (lower and upper arch of teeth - two pieces), You can buy any number of sets of overlays. THERMOSET PADS MADE IN USA 100 % ORIGINAL MADE IN THE HIGHEST QUALITY AND USED FOR WHITENING WITH WHITENING PREPARATIONS, as well as for gels that abolish hypersensitivity Spring design: Variable diameter wire coiled screw spring Each overlay should have a production inscription - MADE IN USA ! These are original overlays made in the United States. Picture shows two pieces2*OVERLAYS (set) METHOD OF USE: The lower and upper cap are shaped in the mouth separately. Heat the water to near boiling point. Holding the handle, immerse the cap vertically in water so that it is fully submerged for a few seconds (about 5 -10 seconds). Important : Holding too long in water can destroy the overlay! Under the influence of hot water, the cap becomes plastic and more transparent. Then place the cap in your mouth and bite, then form it around your teeth by pressing with external and internal fingers parts of the overlay. Wait several seconds until the overlay Itll cool and stiffen. Done, we have our jaw print. Cut off the tip (handle) of the overlay and repeat the same process for lower teeth. The cap is ready to apply the gel if it overlaps gums, we cut it gently so that it does not constitute discomfort in the mouth, Just ordinary nail scissors are enough. teeth or its walls have glued together, you can repeat the operation heating. Overlays are reusable PANEL