1. The conduit for trees to transport water, namely brown eyes and brown lines. Chicken wing wood has a special texture and a thick catheter, so there are many pinholes around the catheter.
2. It may be that the wood fiber is blocked during the growth of trees, and the material of the chicken wing wood beads is light. In a dry environment, the wood fiber inside the wood is spread by water to form small holes.
3. When making beads, the material of Pteris cristata was not completely dried, and after processing, some small holes were left.
In a word, these small holes may be caused by the natural texture and material characteristics of chicken wing wood, or by some factors in the production process.