Bamboo jar
The bamboo jar is made from solid and mature bamboo with a diameter of 3 to 5cm. It is cut according to the nodes, leaving one end with a node as the bottom and removing the node at the other end to create an opening. The opening of the jar is polished smooth, and the surrounding area is stripped of old skin. The jar is made slightly thicker in the middle and slightly thinner at both ends, resembling a waist drum. It is approximately 10cm long and comes in three different sizes for the jar opening: 5cm, 4cm, and 3cm in diameter. Its advantages are its lightweight, affordable price, and durability; however, it is prone to drying, cracking, and air leakage. It also has weak adsorption capabilities and is not easy to observe changes in the skin.