*BLACK OBSIDIAN STONE NECKLACE-Obsidian is sacred in the ancient West and is a good talisman. It has the effect of warding off evil spirits and dispelling negative energy. Unlucky people wear it to turn their luck. It can also increase vitality. *MENS WOMENS NECKLACES-This pendant necklace for men women is very popular and suitable for both men and women. It is easy to wear with clothes and costumes for various occasions, making you stand out in the crowd! Crystals represent flowers and blessings. You can also use them as crystal gifts to give to your love, family and friends on Valentine Day, Mother's Day, Father's Day，Christmas, Thanksgiving, birthday, etc.