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When you were wiping a table, did you feel that you were sweated all over to completely clean away dusts, hairs or food waste on it? This is because the surfaces of common cleaning rags are equally thick that when you pick up stuff, the rags will be shaped like waves, which makes it hard to have an overall cleaning. After some designing experiments, it is discovered that variation of thickness can solve this problem. Therefore, we sew a circular pad in the middle of the cleaning rag with a thick cotton thread inserted in between. We can use the circular pad as tongs to pick up waste easily.