Our child resistant glass dropper bottles are made from hygienic glass, commonly known as Boston Rounds. The child resistant dropper bottles have a 20mm neck finish, 20/400 thread, presenting the sterile storage solution your health demands. Boston Rounds come with a dropper (comprised of a glass tube and rubber bulb) that is ideal for dispensing or dosing by serving. Available in amber, black, white, blue, green and clear bottles. The capacity is 15ml, 20ml, 30ml. We can also print your logo on the dropper bottles.