Compatible with:ram hydraulic disc brakes (Red, Force, Rival, Level Ultimate, Level TLM).- Colour:lack.- Workshop packaging incl.expanding spring.Semi-Metal:Formulated specifically for frequent users giving improved off-road performance, ideal for cross country.- Good all round braking performance.- Improved wet performance (over organic).- Average to high temperature use.- Improved pad wear (over organic).Organic:his compound is targeted specifically at the general town / city road user.- Excellent short term braking.- Very good noise characteristics.- Very low disk wear.