4PCS Transparent Silicone Thermoform Moldable Dental Mouth Guard,...

4PCS Transparent Silicone Thermoform Moldable Dental Mouth Guard, Whitening Teeth Trays Whitener Mouth Guard Care Oral Hygiene Bleaching Tooth Tool

• Made of food-grade silicone, safe, no toxin side effect. Each size (app): Size: 6.5 x 6 x 1.3cm / 2.55 x 2.3 x 0.51". No instruction, please read the description on listing carefully.
• Usage Instructions: 1, Place tray into hot water about 80-90 °C degrees Celsius (about 194 degrees F) for 12-15 seconds to soften and remove from the water; 2, Place the trays into your mouth and press the bonding surface of tray and gum.
• 3, Cut the extra at the impressed gum-line and finish making the tray. 4, Apply the whitening gel in each tray to whiten your teeth. 5, The replacement time of the trays is 3-4 months.
• Softening Tray: the 80-90 °C degrees Celsius (about 194 degrees F) water into the ground vessel, water depth to be able to handle removed after immersion tray and leave in the water outside is appropriate, the denture immersed in water 12-15 seconds. (Denture very soft at the moment, so the immersion time not too long, soft denture made in elongation, slightly starts to deform appropriate).
• Please clean the tray with water before using. If the tray shape is not made well, you can repeat the process for the second mould.