This pneumatic caulk gun is Ideal for seal joints on wood, composite, glass or even rubber and plastic materials. Air flow regulator is included but nozzles are not included. Benefits: * Efficient pneumatic air caulk gun. * The working pressure is adjutabl. Adjust the working pressure to control the outflow rate. * Lightweight and Portable. * Air tight and minimum overflow. * Super durable, also made for big renovation projects.