Crest 3d whitestrips

I just received my crest 3D Whitestrips. I had to break the box to get it out of my mailbox. Good Job USPS! Anyway, I have to say that I am super excited to try these white strips out. In the box there are 20 upper and lower strips. They are in the same foil packaging, 2 strips per packet. I will give a updated review this weekend, when I have fully tested out these strips. Even better, my mom is going to try them out as well.