Boston Round Bottles are general use bottles that are perfect for liquids, product storage, and field or plant sampling projects. They feature a round body, rounded shoulders and narrow screw neck opening. These environmentally sensitive bottles help eliminate waste and help to insure product integrity for long term storage. Clear / Flint Boston Round Bottles offers maximum visibility and sample integrity. Amber & Cobalt Blue Boston Round Bottles protect contents from UV rays and are ideal for light sensitive products.