Blue Agate 10mm Power Stone Bracelet. - Color: Blue - Material: Blue Agate 10mm - Design: Bracelet - Size: Free Size I purchased this from an overseas streamer who deals in natural stones, but I bought too many, so I'm selling some to organize. Blue Agate is said to enhance intelligence and reason, activate thinking abilities, and also has a healing effect that calms the mind and protects against stress and negative emotions. It is also said to smooth relationships and serve as a charm for health and longevity, and is especially suitable as a charm for work, study, and new challenges. Thank you for viewing.