Watts Dental Comfort Fit Teeth Whitening Trays - 4 Trays - 2 Complete Sets - Extremely Soft & Can Be Used with or Without Forming
The EVA material makes this tray extremely soft for a comfortable custom fit. EVA is the exact same material that dental labs make custom trays out of for hundreds of dollars. These trays need to be dipped in hot water for 2 seconds and instantly forms to your teeth line.
