This Westinghouse Lighting Vapor Proof Clear Glass Threaded Neck Shade protects your exterior lighting from moisture. The shade features a tubular clear glass design and vapor proof construction with a threaded neck for a watertight seal. This shade is ideal for walkways and other exterior areas that are exposed to the elements. It measures 6-3/4 in high by 3-1/2 in in diameter and features a 3-1/4-inch thread. Installation is easy with a threaded neck that screws directly into a shade holder.