A Boston Round is a type of bottle commonly used in the drug and chemical industries. Also known as Winchester Bottle, it is heavy and strong bottle made of amber (brown) glass that helps in filtering out UV light. Though, it also comes in plastic material and in different colours. A Boston Round is cylindrical in shape without a handle and a short curved shoulder. The top narrow opening is threaded for closing with a screw cap. Such types of bottles are used for containing liquid chemicals in a lab or research center. The classic, Boston Round glass bottles are great for aromatherapy products. The Boston Round bottles are narrow mouthed, wide mouthed as well as can be found in pharmaceutical rounds and lab rounds..