Our essential oil roller bottle accessories feature 16-tooth transparent roller balls made from PE plastic. These clear roller balls are Suit for replacing worn-out parts in your lip oil or perfume bottles. With a pack of 30 pieces, you can easily maintain your collection of essential oil roller bottles, ensuring smooth and consistent application every time. Features -Color:Transparent -Material:Steel, Plastic -Size:2.10X1.00X1.00cm/0.83X0.39X0.39in -Portability: small and lightweight, these roller ball bottles are easy to carry, making them Suit for use and quick replacements -Versatility: suitable for essential oils, lip oils, perfumes, and other liquids, these bottles meet a variety of needs and applications -Precision roller design: featuring a 16tooth transparent roller ball, these bottles ensure smooth rolling and even application for a comfortable user experience -Material quality: made from pe plastic, these transparent roller ball bottles are safe, reliable -Wide application: ideal for use at home, during travel, or in the office, these roller ball bottles cater to different scenarios and requirements Package list: 150 x roller bottles