The stones are natural stones found near the sea or lake, and the agate flakes are claimed to be from Brazil by the person who purchased them. The pigment used is acrylic pigment, which belongs to the polymerized pigment synthesized by Rengong. It is a new type of environmentally friendly pigment known for being non-toxic and odorless. Acrylic paint is vibrant and rich in color, durable and resistant to wear, water-resistant, anti-corrosive, and resistant to natural aging. It does not become brittle or yellow over time, but it can be easily removed with alcohol or turpentine.”