Items bearing the Restriction of Hazardous Substances Directive or RoHSmark comply with the European RoHS directive.
This directive restricts the use of six hazardous materials:Lead, Mercury, Cadmium, Hexavalent chromium, Polybrominated biphenyls, and Polybrominated diphenyl ether. Hexavalent Chromium is changed to either chromium free or trivalent chromium. Most of the stainless steel products do not contain Hexavalent Chromium.
For more info, visit RoHS info page UK