The roll-on bottle allows oils to be applied precisely and easily to the skin. The ball is made of smoothly polished rock quartz, and the stones inside provide a unique visual effect. It is also believed that the stones enhance the effect of the mixture. Rock quartz is said to have healing properties, such as promoting emotional balance and enhancing intuition and decision-making. It is also considered a stone of clarity, helping to clear the mind and support spiritual growth. These gemstone roller bottles are perfect for holding essential oils, perfume oils, DIY sample blends, essences, aromatherapy, and other liquids. They offer a beautiful and functional way to use and apply your favorite mixtures.