Product introduction: Lucky Beads Obsidian Crystal Bracelet (unisex). 1, using natural obsidian design, the main component is crystal, long-lasting bright, not fade, symbolize good luck, happiness. 2, with anti-radiation function, let your body away from radiation damage, let you be healthy and Make your wishes come true. 3, Own wore, sending parents, sending lover, sending friends are very good. 4, the product is hand-carved, the quality is very good. Lifelike. 5, brave troops in China and Vietnam and other countries have auspicious meaning. It is a necessity for the king to wear in ancient times. 6, while letting you be stylish and elegant. 7, in line with international quality testing standards. Suitable place: Suitable for any occasion. Product color: black. Product size: Freely adjustable. (Each bead has a diameter of about 12 mm). Product weight: 10g. About chromatic aberration: Different displays produce different effects, but they are usually the same as real ones. About size: The products are hand-made and hand-measured, and the error is normal at 1-2cm.