The rent of shops in bustling areas is expensive, so how to effectively use the space has become the first consideration for designers. The space in the bathroom is very limited. It would be a good idea if the toilet and sink were combined into one. The hybrid design of the toilet and wash basin introduced below is very practical and full of creativity. You don’t need to flush immediately after using the toilet. You can move the wash basin above the toilet by rotating it, and the water used to wash your hands can flush the toilet clean. It saves both space and water.