1/2 oz. Cobalt Blue Boston Round with Black Child-Resistant Dropper (18/400)

Glass Bottle Outlet
Availability: 5443 in stock
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You don’t have to sacrifice style to insure your children’s safety with this cobalt blue glass bottle

In an environment where children are present, there is a need to protect them from liquids and substances that may be harmful to them. Making sure your bottles are child-resistant can be your second line of defense when children find a way to get things you have placed out of their reach. This 1/2 oz. cobalt blue boston round bottle with black child-resistant dropper is the perfect choice when making an environment safe for children. The beautiful cobalt blue glass also adds a bit of style to your storage needs.

Features of this cobalt blue glass bottle;

  • The cobalt blue glass is designed to protect its contents from UV light.
  • The bottle can hold up to 1/2 oz. of liquid.
  • The black child-resistant dropper can help protect children from the contents of the bottle.
  • Perfect for storing liquids, essential oils, tinctures, and can even be used as packaging for handmade gifts.

These cobalt blue glass bottles are also extremely cost-effective and if you order in bulk you can save even more.

How do I choose the correct closure size?

Closure sizes are expressed using two different numbers.

  • The first number you see refers to the diameter of the closure or bottle opening.
  • The second number is the Glass Packaging Institutes (GPI) thread finish and refers to the height of the cap and the style of the threads on the closure or bottle.

For example, a closure size of (20/400) has a diameter of 20 mm and fits a bottle with a 400 GPI thread finish.

Some neck sizes are interchangeable. For instance, a 20/410 closure will usually fit on a 20/400 bottle. Also, 410 and 415 are usually interchangeable if the closure is not tamper evident.


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