We had a lot of adapter last time my friends came over and I was particularly curious about why our family had so many adapter , and then I said one of my former colleagues did this and a lot of company samples were sent to employees for trial each time they were made and all of them were of special quality. Good product, I’ve been using one at home for years and I’ve never had anything to do with it, so I don’t have to pile it up at home, and every time a friend comes to my house for a visit, I give them an adapter and they all laugh and say they think it’s really nice and nice. A little gift can be taken back.