These essential oil dropper bottles are made of strong beautiful black glass, soft and durable rubber piston and tapered tip glass pipette. The colour of boston glass dropper bottle is black designed to protect internal liquid against ultraviolet rays. The convenient size makes it perfect for travel in bags as the Leak-Proof covers. You can travel with liquids for daily eye, face and body care. The long reusable glass dropper help dispense and drop liquid more efficiently, especially when little liquid is at the bottom. Great for DIY essential oils, colognes, tincture, cosmetics, perfume oils, beard oil, hair oil or other liquids. The eye droppers allow for the perfect amount of product to be used every time.Ideal Travel Bottles: