Material Glass Color Amber Capacity 30 Milliliters High-Quality Material: These essential oil dropper bottles are made of strong beautiful amber glass, thick black plastic lids, and corrosion-resistant silicone tops. Multi Uses: Great for DIY essential oils, colognes, tinctures, cosmetics, perfume oils, beard oil, hair oil, or other liquids. The eye droppers allow for the perfect amount of product to be …