To provide a shelf light and portable easier to carry in and out the room, especially useful in the removal as it's safe even bumped on and can be folded in once the fluid inside is ejected out.

A unit structure of a shelf 10 is made by using an elastic sheet material in sides 11, a top 12, a bottom 13, a back 14 and a shelf 15 except openings 10a, 10b where articles are put on. As throughout the inside is wholly empty, it's shaped out to a finished product when filled up with fluid such like air through an inlet 16.