These glass bottles have simple but elegant look. This 60 ml amber glass boston round bottle has a 20-400 continuous thread neck finish and round base. The amber color provides UV filtering properties perfect for protecting light-sensitive materials. These bottles are ideal for housing aromatherapy, scented oils, beauty care and fragrances, or any liquid requiring UV light protection. Note: These bottles are compatible with continuous thread 20-400 caps ONLY. Caps are sold separately.