This is the Fillimilli Wedge Sponge! Since I have dry skin, I always use a damp wedge puff when applying foundation. I used to use one from Daiso, but after trying the Fillimilli one, I found it to be definitely better. I have already used three and am currently using the last one. Since all six sides are usable, you can utilize both the wide areas and the corners. I throw it away after using it 5-6 times. I recommend it!