These essential oil roller bottle accessories are Suit for anyone who loves creating their own oil blends. The 16-tooth transparent roller balls are made from durable PE plastic, ensuring a smooth and consistent application. Use them to replace worn-out parts in your lip oil or perfume bottles, and keep your collection in Suit working order with this pack of 30 pieces. Features -Color:Transparent -Material:Steel, Plastic -Size:2.10X1.00X1.00cm/0.83X0.39X0.39in -Portable and lightweight: these roller ball bottles are small and lightweight, making them easy to carry and Suit for use -Multiuse capability: suitable for essential oils, lip oils, perfumes, and other liquids, these bottles offer a versatile solution for various needs -Smooth rolling experience: featuring a 16tooth transparent roller ball, these bottles provide a smooth and even application, ensuring user comfort -Reliable and durable: constructed from pe plastic, these bottles are transparent, and safe for various liquids, ensuring use -Versatile application: ideal for use at home, during travel, or in the office, these roller ball bottles are designed to meet diverse requirements Package list: 30 x roller bottles