I purchased Kore which is not too small compared with other case size.
To be honest, I want to prevent falling through the cord in the hole of the lid because the clip on the back is about omake.
It corresponds to a thing with no extra parts in the type of earplug.
Although I do not have to bother to buy the money to buy it, it is thought that it may be good to buy the thing that comes with the case to the earplug body, but this product is unexpected, it is convenient. Although I think that it seems to be good even if bundling a ball chain or a cord that hangs at least, it is good impression that the goodness of division as saying that it is done freely according to each use situation is good.