4Oz Amber Glass Bottles, Boston Round Glass Bottles (50 Pack) With Leak-Proof Package Included: 50 pack 4 oz Boston round bottles with lead-proof caps, 4 funnel brushes, chalk labels, 1 pen, easily marked and identified what's in each bottle. Premium Quality:Boston bottle made of high quality glass, poly cone insert for tight seal. It also has excellent stability. Amber Boston bottle protect the vanilla extract from sunlight that can affect the vanilla over time. UV Protection:Brown glass bottles are protected from light and can effectively resist sunlight, extending the shelf life of light-sensitive products. Amber Boston round glass bottle perfect for homemade vanilla extract, essential oils, medicinal products, herbal medicine,High quality concentrated salt and more. Multipurpose use: Brown apothecary bottles are great for so many different uses and do it yourself projects and essentials oils such as beard oil or hair oil, perfumes and cosmetics. Perfect size: For all your needs whether your traveling and on the go, or storing it in your fridge or kitchen cabinets, these 4 oz bottles will fit the right amount without taking up your space.