The 15ML Blue Dropper Bottle with 18MM PP Knurling Dropper is designed to meet the needs of the cosmetic and pharmaceutical industries. Made from high-quality blue glass, it offers superior UV protection to preserve the contents. The dropper features a glass tube with a silicon white rubber teat and a wiper plug for controlled and accurate dispensing. The PP knurling dropper design ensures a secure grip and leak-proof sealing, making it ideal for storing essential oils, serums, and other liquid formulations.