It includes receiving portion (5, for coupling 5 ) bar (6) to bone anchoring element (1), pressure member (7), clamping ring (8) that a kind of bone anchoring device, which provides,. Receiving portion (5,5 ) (5a) includes a first end, a second end (5b), the first end and second end (5a) (5b) extended between central axis (C groups), groove (52) is in first end (52), second end (5b) for receiving bar (6) and head receiving portion (57) pivotably retains the bone anchoring element (1) of head (3). Head receiving portion (57) is at least partly flexible. Pressure elements (7), which is configured to extend to, applies pressure female connector (3). Clamping ring (8) is configured as being disposed about head receiving portion (57), when clamping ring (8) surround head receiving portion, clamping ring (8) can be in latched position, wherein clamping ring (8) applied force (57) in the receiving portion of head, female connector (3) is locked in this way, with a non-locked position, wherein female connector (3) can be relative to receiving portion (5,5 ).
