I really appreciate your great quality. They are thicker than I expected, based on other night guards I have with the similar speciation. They are great fit, almost too good. I have to use 2 hands to pull them out. They cling to my teeth tighter than any other night guard that I have had in the past. With the thickness and the fact, I have 2 for my upper teeth to start, I cannot see needing another night guard for a couple of years at minimum (unless I get one of the broken teeth I have replaced with an implant). So, I will be recommending your service to anyone who needs a night guard.