Our 18-tooth essential oil bottle accessories set is designed for those who love to create their own essential oil blends. With these roller balls and caps included, you can easily mix and apply your favorite oils. The roller balls provide a smooth and even application, while the caps keep your oils clean and uncontaminated. These accessories are essential for any essential oil lover. Features -Color:Black -Material:Stainless Steel,pp -Size:2.90X2.10X2.10cm/1.14X0.83X0.83in -Size:2.20X1.20X1.20cm/0.86X0.47X0.47in -Simple to use: the 18tooth essential oil bottle accessories with roller ball and cap are designed for simple use, making essential oil application -Leakresistant design: the cap effectively prevents essential oil leakage, ensuring that the bottle remains clean and dry -Smooth and even application: the roller ball design provides a smooth and even application of essential oils, maximizing their benefits -Versatile use: these accessories are suitable for various essential oil bottles and can be used in different environments such as home, office, and travel -Durable and reliable: made from sturdy materials, these accessories are built to last, offering a reliable and solution for your essential oil needs Package list: 20pcs (10 roller balls + 10 black caps) essential oil bottle accessories