PS-2 Heavy Duty Sandblaster Sand Blasting Gun Kit with 4 Ceramic Nozzle Tips 5mm and 6 mm Powerful tool for removing tar, rust, old paint and many other materials. Designed for fast efficien can also be used to clean the structural parts, mechanical parts and products and other items. package include a 5mm and 6 mm steel gun nozzle . Additional : 2 pieces 5 mm Ceramic Nozzle (use for Glass or marble engraving ) 2 pieces 6 mm Ceramic Nozzle ( use for Metal derusting )