Ishan13 Cai Yishan creative design Metalworking artist Cai Yishan, who created his own brand I-Shan in 2010, continued the ancient goldwork technique, and built the beauty of life details into the jewelry creation of I-Shan13 in a minute. *Each piece of work is hand-made and will be slightly different from the picture. Please accept it again. Maintenance and warranty After wearing it on weekdays, simply clean it into the jewelry box to avoid contact with the air. Metal oxidation is a normal phenomenon. If oxidation problems occur, use silver-washed water and silver cloth for simple cleaning. The work provides after-sales service. Please refer to the guarantee card for details.