A hand held instrument (100) in a kit (200) for use in positioning a constraining ring (16) of an acetabular liner (14) system and includes a shaft (202) including a first coupling member (108), and a plurality of heads (204,206,...), each of the plurality of heads (204,206,...) including (i) a base (214,216,...) configured to couple with the first coupling member (108) and (ii) a pair of resilient gripper arms (224,226), each of the pair of resilient gripper arms (224,226) defining a constraining ring reception area having a size different from the constraining ring reception area defined by the pair of gripper arms (224,226) of each of the other of the plurality of heads (204,206,...) .
