Terraced design, a total of 4 floors. The "top layer" can be inserted vertically into pens, rulers, scissors, etc. The "lower three layers" are shallow in depth and can place smaller stationery, such as pins, clips, short pencils, etc., which are also very convenient to take. At the same time, there is a small opening at the corners of the upper three floors to show the irrigation status of the terraces.