Graco #LL5-417 LineLazer RAC 5 SwitchTip - 0.017 inches (orifice size) - for 4-8 inch Line Widths - LL5417 Creates clean, laser-sharp lines with no fuzzy edges or thin spots Designed specifically for parking lots, roads, warehouse floors, crosswalks and athletic fields Sprays heavy water-base to thin alkyd traffic paints Ensures consistent paint thickness, from edge to edge, less overspray and long-lasting lines One (1) Graco RAC 5 Switchtip, One (1) black rubber gasket, and One (1) metal seat.