These versatile and handy pumps are perfect for the application of thicker liquids. Ideal for facial oils, massage oils, infused herbal oils, and other more viscous herbal preparations. This pump will fit both the 1 oz. and 2 oz. Amber and Cobalt Glass Bottles as well as the 1 oz. Plastic Bottles. The dip tube from the neck to the bottom of the tube measures 3.125 inches.