A damping device applicable to a hinge comprising a first component , a second component pivoted to the first component , and a mounting member , the damping device comprising: a housing configured to be installed on one of the first component and the second component ; a damper arranged on the housing , the damper comprising a first movable member and a second movable member longitudinally movable relative to each other; an abutting member configured to abut against the second movable member of the damper ; and an adjusting member transversely movable relative to the housing , wherein the housing comprises an extension part , and the adjusting member is movably installed on the extension part , characterised in that the adjusting member comprises a main body and a flexible part connected to the main body , wherein the main body has a transverse guiding feature for allowing the adjusting member to be transversely movable relative to the housing , wherein the transverse guiding feature comprises a first hole , a second hole , and at least one guiding section located between the first hole and the second hole , the adjusting member is connected to the extension part of the housing by the mounting member passing through one of the first hole and the second hole ; wherein when the mounting member passes through the first hole of the adjusting member to hold the adjusting member at a first position relative to the housing , the adjusting member abuts against the first movable member of the damper ; wherein when the mounting member passes through the second hole of the adjusting member to hold the adjusting member at a second position relative to the housing , the adjusting member does not abut against the first movable member of the damper . a housing configured to be installed on one of the first component and the second component ; a damper arranged on the housing , the damper comprising a first movable member and a second movable member longitudinally movable relative to each other; an abutting member configured to abut against the second movable member of the damper ; and an adjusting member transversely movable relative to the housing , wherein the housing comprises an extension part , and the adjusting member is movably installed on the extension part , characterised in that the adjusting member comprises a main body and a flexible part connected to the main body , wherein the main body has a transverse guiding feature for allowing the adjusting member to be transversely movable relative to the housing , wherein the transverse guiding feature comprises a first hole , a second hole , and at least one guiding section located between the first hole and the second hole , the adjusting member is connected to the extension part of the housing by the mounting member passing through one of the first hole and the second hole ; wherein when the mounting member passes through the first hole of the adjusting member to hold the adjusting member at a first position relative to the housing , the adjusting member abuts against the first movable member of the damper ; wherein when the mounting member passes through the second hole of the adjusting member to hold the adjusting member at a second position relative to the housing , the adjusting member does not abut against the first movable member of the damper . <EOS>