This is Lotion Pump. The sizes are 24mm, 28mm.Plastic mist sprayers are usually used on cosmetic or perfume bottle. For this kind of Lotion Pump.The pumps are used for dispensing dry oils and feature a unique precom pression spring that guarantees watertight oil diffusion. They are available in a wide range of sizes and colors and feature a cap for a stylish finish. Of course, if customers have other size requirements, we can make new molds for production. At the same time, we can produce sprays of different colors, and customers can also choose the length of the straw according to their own bottle type, In addition to lace-style pump, we also have a glossy-style pump for customers to use and test.