Karesansui wave pattern material

Quick answer：

Karesansui, also known as 'dry landscape,' is a traditional Japanese garden style that uses carefully arranged rocks, sand, and moss to represent a natural landscape. Wave pattern material, in this context, refers to a design element used to simulate water in a karesansui garden. It is typically crafted from fine sand or gravel, meticulously raked to create the illusion of flowing water.