My audiologist likes to make his own hard ear molds and often "sells" his brand with a promise that I would like them as well as that they would last longer. I had them as a child and didn't like them. I have worn a semi soft/hard for years and a hypo allergenic brand. I love it but I also have found that they aren't really lasting as long as they used to and presume its due to the change of the chemical make up of the ear mold or advancement in cheaper material to create the mold. He says that he only can use this one company to make the soft molds and charges $130 for a pair. I usually get a pair once a year and have to remind him no vent hole and to make sure that they make the soft mold of the entire ear. its been challenge to make this a two time trip with the first to make the mold and the second to pick them up which usually ends up being a month long process to get them made properly. I am curious if I am being duped or not. My previous audiologist was so much easier going and had no issues .