Our 18-tooth essential oil bottle accessories set is ideal 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 a must-have for any essential oil enthusiast. 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 -Easy application: the 18tooth essential oil bottle accessories with roller ball and cap are easy to use, simplifying the process of applying essential oils -Leakproof design: the cap effectively prevents essential oil leakage, ensuring that the bottle remains clean and dry -Consistent application: the roller ball design allows for the consistent application of essential oils, maximizing their benefits -Wide applicability: these accessories are suitable for various essential oil bottles and can be used in multiple settings such as home, office, and travel -Reliable and durable: made from sturdy materials, these accessories are durable and reliable, offering a solution for your essential oil needs Package list: 20pcs (10 roller balls + 10 black caps) essential oil bottle accessories