For those who wish to keep and deliver a liquid in a precise way, the 30ml square shaped dropper bottle glass is a must-have. The dropper is perfect for dispensing essential oils, serums, and other liquids because of its effective design that allows for ease of use and precise measuring. Glass both looks and feels good while also keeping the contents safe from the environment, which would otherwise jeopardize shelf life and quality. With more consumers reminding the importance of the environment, our bottles refillable glasses fill the void left by plastics quite well.