The basics The Iwata Eclipse HP-CS is a gravity-feed airbrush featuring a special 0.35mm needle and nozzle combination. The benefits It has a 1/3 oz size cup replete with a new funnel shape. This makes for efficient paint flow as well as easy cleanup.  The uses Eclipse Series offers a broad spray range, as compaired to other airbrushes, where it is possible to achieve a controlled fine line to controlled wide spray.  The bottom line The HP-CS also sprays heavier acrylics and textile colors yet also maintains high-detail spray characteristics.