The case is very durable and the design is great! The fastening is very easy. I was a little nervous about the fit but did as amazon suggested and bought the 9. These would be more like a size 6 in traditional toddler shoe sizing. I spent quite a long time looking around for headphones, and chose these as earlier versions of the M50x which is 2. You open the box and are greeted with a small black plastic box containing the headphones, as soon as you open it they are ready to pair with whatever device you wished. It will definitely outperform your expectation! Will make a bigger water bottle rack for my bike but that OK. Decent weight to it, ao it wont easily topple over. Should have returned them but I wore them hoping they would form to my feet.