Dental Vaccum forming Sheets

1.The purpose of the product is: whitening, anti molestation, tooth protection, and possibly correction.
2.Retainer and molar teeth protect sleeve.
3.No bubble: no bubble after heating. Size: Square: 127mm.
4.No odor: no odor after heating. Visually inspect the surface finish and check whether there are bubbles after heating.
5.Caliper measurement. Smell to see if there is peculiar smell.