4 oz Amber Glass Boston Round Dropper Bottles protect UV-sensitive Liquids. Good for pharmaceuticals, nutraceuticals, tinctures, oils and any other light-sensitive liquids. FDA compliant. This bottle has a 22-400 neck finish and can be paired up with any of the closures under the Product Accessories below. Closures are sold separately. Bottles are sold by case quantity. Scroll down to the From the Blog section to learn more about our Amber Bottles, Lids & Droppers.