1: Durable pneumatic air spray gun, excellent for applying automotive rust proof, rubber undercoating, chip guard, truck bed liner, and other general purpose coatings. 2: Precisely manufactured lightweight balanced gun that can be used to apply different viscosity coatings and various textures. 3: The liner gun has a die-cast aluminum alloy body with an easy-grip trigger handle, easy to operate and comfortable for grip. 4: Metal texture, strong and durable, uniform spray, adjustable flow, stable pressure, plug and play, easy to use and install, has a long service life. Go hand in hand with the disposable cup. 5: Can be used with the plastic tube nozzle to suit various coating requirements.