I received the kit one day after placing the order, and the dental trays around 8 days after returning the moulds. It is fairly fiddly using the kit and you need to read the instructions carefully and try putting the mould trays into position without the putty to see how it feels.
The results are good, not as good as the trays my dentist made for me a few years ago (but which unfortunately got lost) but a lot cheaper. This approach to teeth whitening is kinder on the teeth and longer lasting than laser treatment, though both combined works well.
It would be better if there was a You Tube video demo on how to use the kit.