<http://schema.org/description>
"Coloured rings with flat label surface for C-Series, available in 9 standard colors. Color coding: 1-brown, 2-red, 3-orange, 4-yellow, 5-green, 6-blue, 7-violet, 8-grey, 9-white."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pennelcomonline.com/en/Neutrik-Coloured-Ring-White-for--NP-Jacks-PCR-9-PCR-9/m-5129.aspx>