Product | DMH Acetabular Cup Description Dual Mobility Acetabular Hip System, Hip Joints DMH Acetabular Cup Proven dual mobility design to increase range of motion, decrease wear rate and lower dislocation rate; highly polished inner surface to reduce wear; Titanium plasma spray surface assists with mechanical engagement in bone; Special instrument to hold the notch of cup while not contacting the polished area; Additional information DMH and DMH 4X Dual Mobility Hip