The product is made entirely of natural Pomu wood. Using the technique of joining yin and yang tenon is extremely strong and leak-proof . There is a stainless steel flip-down drain valve at the bottom. The bottom of the box is very convenient. Be sure to check the yin and yang between the wooden bars together, ensuring no water leakage. Sauna services have always been popular due to the great benefits that saunas bring. But for many people, after a hard day's work, it is extremely difficult to "plug" their body to the place where the sauna service is available. For this reason, the trend of buying wooden tubs that can be steamed at home has also become popular.