Double wedge shape, proven geometry Müller stems with 125 degrees CCD angle in cemented and cementless versions. Raw materials are proven to have the best fatigue and wear resistance: cementes stem is made of REX steel, cementless is of titanium. Cementless mircoporotic surface can be titanium plasma or Hydroxi-apatite as well. With the wide range of stems, resps functioning as trial stems, the instrument set is one of the modernist hip systems. Heads connect through 12/14 Eurocone to the stems, sizes are in 28 mm and large ones are also available. Raw material is CoCr or ceramics.