สอบถามสินค้าและบริการได้ทุกช่องทาง Polish your stones with a tumbler. If you don't have some time or inclination to polish stones by hand, You should use a tumbler. Pour in water until eventually it touches the bottom of the highest layer of rocks, then place the lid on and start the tumbling procedure. https://beediadiamond.com/catalog/polishing-stones