Unisex Inner diameter: Approximately 16mm Affordable quality, featuring various shades of green rabbit hair. They have cute faces! (o^^o) Also known as green sagenitic quartz. Green rabbit hair is believed to primarily have healing and vitality-restoring effects, relieving stress and tension, and balancing the mind and body. It is also said to bring out youthfulness and enhance concentration and inspiration. #RabbitHair #NaturalStone #PowerStone