Press Fit Acetabular shell (Cotyle) with equatorial macrostructure designed in compliance with tribology (tribological properties). Press Fit concept with hydroxyapatite coating to enhance osteointegration. The combination of Biolox Delta ® highly resistant ceramic insert and Biolox Forte alumina head allows to preserve a large range of motion and decreases wear phenomenon. Additional binding if necessary, by 3 self-tapping screws.