Nice Compatibility: these paint sprayer tips are compatible with most airless paint sprayers, and 109, 209, 211, 311, 315, 415, 417, 515, 517, 621 correspond to the nozzle diameters of 0.009 inches, 0.011 inches, 0.015 inches, 0.017 inches, 0.021 inches, and the range is 4 to 14 inches Considerate Combination: you get 10 airless sprayer spraying machine parts of different sizes, namely 109, 209, 211, 311, 315, 415, 417, 515, 517, 621; Each is equipped with an airless nozzle and a nozzle seal; Different model combinations can better meet your different needs Broad Utilization: tips with a variety of models to choose from to meet your different use needs, such as paint, furniture, fences, home decoration, industrial fine paint and decoration and so on; Also they are applicable for surfaces and materials, such as industrial enamel, varnish, water based paint, internal and external wall latex paint, fireproof coating Easy Installation: no tools are required to install, and airless nozzle can be easily installed on the in a few simple steps; First, use the nozzle to seal the nozzle into the protective seat, then insert the nozzle into the protective seat and rotate to complete the installation, time saving and labor saving for your project Quality to Use: reversible airless paint sprayer nozzle tip is composed of a 304 stainless steel handle; The blade tip seal is made of stainless steel tip gasket and nylon, which is odorless, sturdy, simple to clean, and can be cleaned by rotating the nozzle, which can provide you with a long term service life Colour:Black Material:Stainless steel Size:nozzle diameters:0.009 inches, 0.011 inches, 0.015 inches, 0.017 inches, 0.021 inches Package Contents: 10 * paint sprayer Nozzles Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.