CLOSE THE LID is a toilet that can be flushed by just closing the lid. It uses a bicycle flywheel-like structure at the shaft, which ensure that the flush is triggered only during the lid closing process and not continuously after the lid is closed. The top cover of CLOSE THE LID is made of transparent material, so that users can see the internal flushing situation, and the flush switch is designed at the top of the cover, so that users can continue to flush after the cover is closed.CLOSE THE LID is also a purely mechanical toilet, which is less costly and more durable than a smart toilet.