Add convenience to your essential oil routine with these replacement roller tops. Designed to fit 16mm neck bottles, they offer a smooth and precise application of oils. The sturdy construction ensures they can withstand regular use, making them ideal for both personal and professional settings. Enjoy the benefits of easy and efficient oil application with these rollers. Features -Color:Multi -Material:Jade -Size:2.00X1.10X1.10cm/0.79X0.43X0.43in -Easy to use: designed for essential oil bottles, these roller tops are easy to install, making them userfriendly -Consistent application: the roller ball design ensures a consistent and even application, improving the effectiveness of your essential oils -durable construction: made from durable, practical materials, these roller tops are built to last, ensuring reliable performance over time -Versatile and practical: suitable for various settings including home, office, and spa, these roller tops cater to diverse needs -Stylish and elegant: the clean and elegant design of these roller tops enhances the aesthetic appeal of your essential oil bottles, adding a touch of sophistication Package list: 9pcs x essential oil bottle head