<http://schema.org/description>
"Designed to allow for color coding for purposes like send/return, the Lava Solder-Free Plug caps fit'snugly on all plugs, can be re-used and come in four colors: Black, White, Red and Green."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bestbassgear.com/solder-free-pedal-board-kit-colored-caps.htm>