Double line Akadama soil is

 formed by the accumulation of volcanic ash. It's a soil medium. It can be called a highly permeable volcanic mud with a circular shape, no harmful bacteria, and a slightly acidic PH. Its shape facilitates water storage and drainage.

Akama soil with a small amount of powder and normal branches,

Product use:

Suitable for pot planting of various plants, especially succulents and cactus and other pulpy plants.