It is used for simple repair of interior. I did not know such a material so far, but I happened to have the chance to use it, I bought it because I think that I have no loss. It is affordable because it contains a lot, but since it uses only about 4 at a time, it seems to have it for the time being. It is comparatively soft and made of resin. Although I am a bit uneasy in intensity, I think that the application seems to be more useful in various ways, I think that I should have bought ahead of time.