A bone coupling device for coupling a first bone piece to a second bone piece, characterized in that the device is comprised of: a female component comprising a cavity, a first indentation extending from an outer surface of the female component and a first stem portion for coupling with the first bone piece; a male component comprising a second stem portion for coupling with the second bone piece and an axially extending connector portion extending from the second stem portion and configured to be positioned within the cavity, the connector portion including a plurality of axially disposed second indentations (250a-c, 252a-c); characterised in that the first indentation includes at least one aperture extending into the cavity, and the bone coupling device further comprises a knobbed c-ring including at least one knob (82, 84), the knobbed c-ring being positioned within the first indentation of the female component with the at least one knob (82, 84) being positioned within the at least one aperture (74, 76) and extending into the cavity, wherein, in a first orientation of the female component and the male component with the connector portion of the male component positioned within the cavity of the female component, the at least one knob (82, 84) is retracted from the cavity and abuts an outer surface of the connector portion, and wherein, in a second orientation of the female component and the male component with the connector portion of the male component positioned within the cavity of the female component, the knobbed c-ring portion is in a contracted state as compared to the first orientation such that the least one knob (82, 84) is positioned within at least one of the second indentations (250a-c, 252a-c) to thereby removably couple the female component and the male component. a female component comprising a cavity, a first indentation extending from an outer surface of the female component and a first stem portion for coupling with the first bone piece; a male component comprising a second stem portion for coupling with the second bone piece and an axially extending connector portion extending from the second stem portion and configured to be positioned within the cavity, the connector portion including a plurality of axially disposed second indentations (250a-c, 252a-c); characterised in that the first indentation includes at least one aperture extending into the cavity, and the bone coupling device further comprises a knobbed c-ring including at least one knob (82, 84), the knobbed c-ring being positioned within the first indentation of the female component with the at least one knob (82, 84) being positioned within the at least one aperture (74, 76) and extending into the cavity, wherein, in a first orientation of the female component and the male component with the connector portion of the male component positioned within the cavity of the female component, the at least one knob (82, 84) is retracted from the cavity and abuts an outer surface of the connector portion, and wherein, in a second orientation of the female component and the male component with the connector portion of the male component positioned within the cavity of the female component, the knobbed c-ring portion is in a contracted state as compared to the first orientation such that the least one knob (82, 84) is positioned within at least one of the second indentations (250a-c, 252a-c) to thereby removably couple the female component and the male component.