1.Color: Blue; Material: Glass; Capacity: 30ml; Bottle Mouth Outer Diameter: 1.7cm / 0.67 inch; Bottle Size: 78 x 31mm / 3.1 x 1.2 inch (Height x Outer Dia); Total Height: 99mm / 3.9 inch; Packing List: 12 x Dropper Bottle 2.Advantages: Made of thick glass material, it is corrosionresistant, has a lightproof effect, is very durable and can be reused. Moreover, it is lightweight and portable. Leakproof Design: The liquid can be sealed and stored when not in use to prevent liquid leakage. The dropper bottle is equipped with a strong suction dropper for convenient liquid extraction during use. 3.This liquid dropper bottle can be used to store essential oils, perfume oils, samples, perfume, liquid or other cosmetic liquid, meeting your needs and suitable for travel, home, business and more. 4.Instruction: Open the dropper bottle, then pour the liquids you need into it with a tool and close the bottle quickly.