This icon is a part of a collection of Schemat blokowy flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality. Both PNG and vector are available.
A large box sits above three smaller boxes. A line is drawn vertically from the bottom of the top box to the top of the middle box. Another line intesects the middle of the line horizontally and then turns at right angles and joins the other two bottom boxes.