BUFF fickert and LUX fickert is made with different production technology. BUFF fickert is resin bond abrasive while LUX fickert is wool made pressed abrasive. The materials are different and the formation of the abrasive brick is also different. BUFF fickert is cheaper than LUX fickert, it is supposed to get longer lasting shinning while LUX fickert is to get higher glossy polishing on granite surface. You can make choices upon your request.