The panel and holes are laser cut from 304 stainless steel and the lettering/symbols are chemically etched into the surface of the panel and then filled in with a dark black paint. This yields a far nicer and more wear resistant appearance than the typical silkscreening/printing process used for most panels. These panels fit the "stock" Box Enclosures B2-080 enclosure. Project Log: http://yzrandome.blogspot.com/2012/04/objective2-headphone-amplifier-ss-front.html