Teeth whitening gel quantity:4pcs a set lightweight

lightweight

chop large quantities of vegetables or make large quantities of soup

effectively prevents secondary pollution of purified water

If You Don't Know How To Choose Size

Teeth whitening gel quantity:4pcs a set lightweightHeat the mouth tray under 80 hot water and warm it up about 10 seconds. Put the mouth tray over your teeth,use your fingers gently try till it mold your teeth,set the trays firmly against the teeth. Step 2: Compare the teeth used teeth shade guide. Apply a thin layer of whitening gel to both mouth trays and spread evenly(0. 25 to 0. 4ml for each tray anymore is just wasted). Insert mouth trays in the mouth and over the teeth,set the trays firmly