Create your own custom essential oil blends with our 18-tooth essential oil bottle accessories set. This set includes roller balls and caps, making it easy to mix and apply your favorite oils. The roller balls fit securely on your essential oil bottles, providing a smooth and even application. The caps help keep your oils from , making them ideal for everyday use. 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 operate: the 18tooth essential oil bottle accessories with roller ball and cap are designed for ease of use, making essential oil application -Prevents leaks: the cap included with these accessories effectively prevents leaks, keeping the bottle's contents clean and dry -Even distribution: the roller ball design ensures that essential oils are applied evenly, enhancing their overall effectiveness -Versatile usage: these accessories are compatible with various essential oil bottles and are ideal for use in different environments such as home, office, and travel -Durable construction: made from sturdy materials, these accessories are built to last, providing a reliable and solution for your essential oil needs Package list: 20pcs (10 roller balls + 10 black caps) essential oil bottle accessories