professional dual layer mouth tray for teeth whitening
1. 100% food-grade material
2. non-toxic, high transparent
3. prefilled with silicone strips to take impression of teeth
2. dual sides
3. very soft
4. each piece packed in an OPP bag
5. more comfortable and convenient to use
Direction for use:
1). clean the mouth tray
2). squeeze thin strip (about 1.5ml) of whitening gel on both upper and lower silicone strips.
2). put it into your mouth, bite it. A treatment takes 20-30 mins.
3). after the treatment, rinse your mouth and clean the mouthpiece for recycle use.