The image is a whiteboard with Chinese text written on it. The text is written in both English and Chinese characters. Below the text, there are six illustrations of different types of tree trunks. 

The first illustration on the top left shows a wooden log with a curved top and a flat base. The second illustration shows a tree trunk with a rough texture. The third illustration shows two tree trays with a smooth surface. The fourth illustration shows three tree branches with different colors and patterns. The fifth illustration shows an arrow pointing downwards. The sixth illustration shows the same tree trunk as the first illustration.

At the bottom of the board, there is a list of instructions in Chinese that explain how to use the tree trunk. The instructions are written in black text and are accompanied by illustrations of arrows pointing in different directions. The background of the image is blurred, but it appears to be an outdoor setting with a stone wall and a window.