Discover the luxury of our 16-tooth perfume essential oil bottle accessories with natural jade roller balls. These roller balls are designed to provide a smooth and even application of essential oils or perfumes. To use, fill the bottle with your chosen liquid, insert the roller ball, and gently roll it onto your skin for a soothing and aromatic touch. Features -Color:Assorted Color -Material:PP Jade -Size:2.10X1.30X1.30cm/0.83X0.51X0.51in -Reusable design: these roller bottles are designed for repeated use, making them an practical option for essential oil application in various settings. -Smooth and even application: the roller ball ensures a smooth and even application of oils, providing better control over the amount dispensed without any leakage. -Simple and quick assembly: installing the roller ball is straightforward—just insert it into the bottle neck, push it in, screw on the cap, and it's ready to use. -Leakresistant feature: the roller securely into the bottle, preventing any oil leaks. it can be easily removed and reused, offering convenience and reliability. -Versatile roller insert: the roller top insert can quickly convert your spray oil bottle into a rollon applicator, ideal for thicker oils, diluted oils, or rollon use Package list: 2 pcs x 10pcs x essential oil bottle jade ball