The 20ML Clear Dropper Bottle with 18MM Silver Aluminum Dropper features a glass tube, silicon white rubber teat, and a wiper plug for smooth, controlled dispensing. The silver aluminum dropper adds a sleek, modern touch, while the wiper plug ensures a secure seal and minimizes leakage. The clear bottle provides easy visibility of contents, making it an ideal choice for essential oils, serums, and other cosmetic liquids.