These 1" and 2" in diameter marble sized black tourmaline spheres are great to place upon an altar or in a home for spiritual protection. Can also be used for scrying and divination. They are around 48g. Tourmaline is believed to promote inspiration and happiness, reduce fear, and build self-confidence among its users. It's also used to balance yin-yang energies, as it's considered a physical bridge to the spiritual.