U+ by hyung jin jang from korea

If a flowerpot is small, you do change the flowerpot. At this time, the small flowerpot can be thrown away or left alone. The useless flowerpot will be garbage and resources are wasted. U+ can solve these problems.
If you add small flowerpot and cylindrical structure, you can use it as bigger flowerpot without interruption.
U+ has better form and mobility by uniting flowerpot with flowerpot gutter.