This icon is a part of a collection of Świece japońskie 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.
The icon shows a vertical rectangle with small tabs sticking out the top and bottom, then slightly higher to the right is another one that looks the same but is dotted. A little lower to the right is a duplicate of the dotted shape. At to the top right of that one is another duplicate of the dotted shape.