Made of ruby, high hardness, not easily worn, excellent stability in fogging points. 7 sizes ranging from supertiny to No, 6 (Hole size: 0.08mm-0.6mm) Tiny fogging points (minimum up to 7 microns). Fogging shows a hollow pyramid. Fogging angle: 60-120 degrees. Complete with a filter core to prevent the nozzle from being clogged.