Review on Keep Your Orthodontic Retainers Safe with Wellgler's Solid Case - 2 Pack in Black by Julie Lorig

I wanted extra cases for my Invisalign etc in my purse to match the braces and removal key (which I bought separately). They don't quite live up to the brand name - they're made out of hard plastic and don't have any silicone inside. They also have a magnetic closure and are waterproof as I asked someone. However, I only needed extra boxes in case I forgot to bring my main box. They came in a multi pack and that was all I really needed.