**On-site experience metalworking course subscript area** >Please go to the following URL https://www.pinkoi.com/product/yzQiEb9D Gifts: ♦ One thick zipper bag for storage ♦ One silver cloth size: ♦ International Wai #7~#12 have Material ♦ 925 sterling silver About the material: ♦ Sterling silver will gradually oxidize due to wearing for a long time. After the tape is finished, wipe it with a soft cloth and put it into the zipper bag to keep the gloss. The color after oxidation can still be polished with a silver cloth! ♦ The composition and characteristics of each natural stone are different, but there are some ice cracks, mineral defects, black spots, uneven colors, etc. Each of the natural stones is different, so the ornaments made of natural stone are also unique. !