Amber Dropper Bottles are known to provide superior ultraviolet light protection in the critical range of 395 to 705 nm. Our entire line of glass amber bottles are produced in China to ensure precision manufacturing and quality. This insures that you receive bottles and closures that can meet even the tightest tolerances necessary for high-speed manufacturing. All of our glass amber bottles feature an 18 DIN neck finish designed to use our Euro Drop Caps. We currently stock many sizes and have one of the nation's largest in-stock inventories available for quick delivery.