I didn't buy these for a Missha cushion, but they are a nicely universal size that fits just fine in my CLIO cushion. It's best to both clean your cushion puffs regularly, as well as to switch them out every once in a while. This was a convenient set to buy, just to have backups once the default puff that comes with whatever cushion gets too dirty to use. They are thick and sturdy, with a soft surface in dark blue.