Cunninghamia lanceolata and cork are fast-growing wood, and the maturity period is 4-6 years. Due to the rapid production, natural wood fiber is loose, has the fragrance of natural logs, and has many beneficial effects on human body. This material is more resistant to corrosion. Since ancient times, the ancients used Chinese fir to make bath barrels and full barrels. Chinese fir is of moderate quality, suitable for the elderly and easy to carry and store.

Cedar wood grows slowly, with hard texture, heavy weight and strong corrosion resistance. Cypress has a natural fragrance that can be used as medicine, and cypress seeds can soothe the nerves and replenish the heart. According to Compendium of Materia Medica, Prescriptions for Twenty-five Diseases and Prescriptions for Thousand Women's Wings, cedar is sweet in taste, flat in nature, enters the heart, liver, spleen, kidney and bladder meridian, and has the effects of health care, beauty and skin care.

Because of its heavy weight, it is difficult for many old people to move away. Therefore, if the elderly want to use the cedar foot bath, they should consider whether they can move.

Every kind of wood has its own characteristics, and the key is to choose the one that suits you. Chinese fir is lighter and cheaper, but its corrosion resistance is not as strong as that of cedar. Cedar has good corrosion resistance, but it is heavy. Because cedar wood has many natural nodes, the finished nodes produced by cedar wood are many, which are not very beautiful at first glance.