Welcome to post Please don't worry, we will not send invoices/prices or other promotional information, We will ship the goods as soon as poible, I wish you a good day x If you like this product, please add it to the "wish list", x If you like our store, please add it to the "Store List". x I'm very much obliged to you ( x x ) description Step 1: Let yourself fill the tray. Heat the mouthpiece with hot water at 80C and heat it for about 10 seconds. Place the mouthpiece on the teeth, try gently with your fingers until it makes the teeth moldy, and then fix the mouthpiece tightly on the teeth. Step 2: Compare the tooth shadow guides of the used teeth. Step 3: Apply a thin layer of whitening gel on the two mouth pads and apply it evenly (a waste of 0.25 to 0.4 ml for each mouth pad is wasted). Step 4: Insert the oral tray into the mouth and above the teeth, and then firmly fix the tray on the teeth. Step 5: Let the customer insert the tray for 10 minutes or 7 minutes, and then rinse with water. Step 6: After teeth whitening, use oral spray, which can refresh your breath. Repeat this complete treatment for 2 teeth, make sure you rinse or dry the tray between each use, or once a day, after 3 days, compare the front and back shadow guide of the teeth, we can improve the shadow of the teeth by 7-10.Including 4and1 sets: 4 x Whitening gel (per 3ml) 1 x The latest designed thermoformed single arch tray 1 x Mini cold light whitening lamp (including battery) 1 x Profeional 3D tooth shadow guide 1 x Tooth tray (white) 1 pc desensitization gel Including 6and1 sets: 6 x Teeth whitening gel (per 3ml) 2 x The latest designed thermoformed single arch tray 1 x Mini cold light whitening lamp (including battery) 1 x Profeional 3D tooth shadow guide 1 pc desensitization gel Including 10and1 sets: 10 x Teeth whitening gel (per 3ml) 2 x The latest designed thermoformed single arch tray 1 x Mini cold light whitening lamp (including battery) 1 x Profeional 3D tooth shadow guide 1 pc desensitization gel3 pcs set included: 3 x Whitening gel (per3ml) 1 x The latest designed thermoformed single arch tray 1 x Mini cold light whitening lamp (including battery) 1 x Profeional 3D tooth shadow guide 1 x Tooth tray (white) 4 pcs set included: 4 x Whitening gel (per 3ml) 1 x The latest designed thermoformed single arch tray 1 x Mini cold light whitening lamp (including battery) 1 x Profeional 3D tooth shadow guide 2 x Tooth tray (white) 6 pcs set included: 6 x Teeth whitening gel (per 3ml) 2 x The latest designed thermoformed single arch tray 1 x Mini cold light whitening lamp (including battery) 1 x Profeional 3D tooth shadow guide 10 pcs set included: 10 x Teeth whitening gel (per 3ml) 2 x The latest designed thermoformed single arch tray 1 x Mini cold light whitening lamp (including battery) 1 x Profeional 3D tooth shadow guide15 pcs set included: 15 x Teeth Whitening Gel(3ml per) 2 x Latest design thermoform single arch trays 1 x Mini cold light whitening lamp(included batteries) 1 x Profeional 3D Teeth Shade Guide 20 pcs set included: 20 x Teeth whitening gel (per 3ml) 2 x The latest designed thermoformed single arch tray 1 x Mini coldlight whitening lamp (including battery) 1 x Profeional 3D tooth shadow guide Including 5 sets: 5 x Whitening gel (per 3ml) Including 10 sets: 10 x Whitening gel (per 3ml) Including 20 sets: 20 x Teeth whitening gel (per 3ml)