DescriptionCommodity Quality Certification : ceSize : 7 X 6 X 1.3 CmColor : ClearTwo trays : One For Upper Teeth And One For Lower TeethMaterial : Food-Grade SiliconeThis product may be intended for use by a health care professional use only. The seller may ask you to evidence you are a qualified health care professional entitled to buy and use such products in your country.Specifications1.Material: Food-grade Silicone2.Color: Clear3.Size: 7 x 6 x 1.3 cm4.Two mouth trays: One for upper teeth and one for lower teeth5.Great to prevent teeth grinding at night and whiten teethUsage instructions1.Place the tray into hot water about 70C for 10-15 seconds to soften and remove from the water2.Place the trays into your mouth and press the bonding surface of tray and gum. The tray is now moulded3.Cut the extra at the impressed gum-line and finish making the trayNotes1.If theh tray is not made well, you can repeat the process for the second mould2.Please clean the tray with water before using3.The replacement time of the trays is 3-4 months4.It is normal to feel discomfort for the first time to wear the tray. You will get used to it after several timesPackage included2 x Mouth Trays