What's the next nostril under the mat?

The one under the drain hole car mat is called floor glue. Generally, there will be a carpet-like object under the car seat. There are many drainage holes similar to nostrils below, which are used to remove some water in the car. There are many drainage holes in the car, which are used to drain the rain from the car in rainy days. The principle and structure are simple, but it is easy to be ignored by most car owners. It is precisely because of this neglect that the rainwater accumulated in the car cannot be discharged, which not only breeds bacteria, but also causes congestion and damages the parts of the car in the long run.