L angle

This is a thick and long, black wooden frame with a round, white, acrylic panel on one side. It is in the shape of an angle. The acrylic is divided into four sections by the black bars in the frame. The first section is a thick black square with a black and white checkered pattern. The second section is a square with black and white horizontal stripes. The third section is a square with black and white diagonal stripes. The fourth section is a square with a diagonal stripe that goes from the bottom left to the top right.