1The roller balls are available in multiple styles and colors, compact and portable, and easy to dispense. 2The 10mm ball design head is tightly connected and does not leak oil, which is convenient for rolling and smooth liquid discharge. 3Using this roller ball, various products such as toner, lotion, essential oil, etc. can be easily dispensed. 4Semiprecious stone ball design, ball rolling design is tightly wrapped, small in shape, easy to carry in the bag. 5Suitable for packaging single compound essential oils, serum, perfumes, toners and other nonviscous skin care liquids and often used for eye and face rollon massage.