This spray nozzle set has a total of 21 types of nozzles, easy to install, wear-resistant, suitable for most household airless spray machines. < strong>Features: Easy to carry, practical. Easy operation, excellent atomization and anti-switched cleaning capacity. The front number represents the spray flow, the larger the number, the wider the spray, followed by two representatives of the flow rate, the larger the number, the greater the flow rate. Fits most airless sprayers. For small and medium businesses and large residential businesses, commercial building spraying work, interior and exterior sprayable latex paint, oil paint. Features : Model: 217, 317, 417, 515, 517, 519, 521, 523, 525, 617, 619, 621, 623, 625, 627, 629, 631, 635, 643, 645, 649 (optional) Main color : yellow + silver Main material: aluminum, iron Item size: 55 * 50 * 18mm / 2.2 * 2.0 * 0.7in Item Weight: 20g / 0.7oz Package size: 125 * 85 * 40mm / 4.9 * 3.3 * 1.6in Package weight: 40g / 1.4oz Package List: Tip 1 * Airless Spray Machines!