Amber Brown Glass Bottles with dropper pipettes & rubber bulbs. High Pharmaceutical quality. Round base amber brown neutral soda glass bottles. The droppers are manufactured from a high quality durable glass and come with detachable best quality silicon rubber bulbs. All parts are detachable and reusable and can be cleaned and washed in warm soapy water. The droppers have been designed with a narrow opening hole to ensure good control of individual droplet release when pressing the bulb. Straight droppers like these are ideally used for administering liquids, including oils, in very small volumes. Perfect to use during Brow Henna treatment.