Abstract: A device for use in treating fingernails with a liquid, such as a nail polish remover. The device comprises a flat-bottomed, cylindrical container having an open top normally closed by a cover. A cylindrical sponge is press-fitted into the container to be frictionally held in place. A finger hole is provided in the sponge. Treatment liquid is poured into the container to be absorbed by the sponge to a level where it can act on the end of a finger inserted into the hole. The finger fits snugly in the hole and is rotated or oscillated therein to assist the treatment.