A restraint device comprising: a housing; a bar housed within the housing, wherein the bar hosts a first set of teeth; a first arm coupled to the housing pivotally, wherein the first arm hosts a third set of teeth, wherein the first set of teeth is configured to mesh with the third set of teeth; and characterized in that: the bar further hosts a second set of teeth, wherein the first set of teeth and the second set of teeth are configured to mesh in opposing directions; the restraint device further comprising: a spring hosted within the first arm and engaging the first arm; and a second arm coupled to the first arm pivotally and engaging the spring, wherein the second arm hosts a fourth set of teeth, wherein the fourth set of teeth is configured to mesh with the second set of teeth when the spring is compressed, wherein the fourth set of teeth is configured to avoid meshing with the second set of teeth when the spring is not compressed, wherein the first arm is elastically coupled to the second arm in order to reduce or avoid overtightening when restraining. a housing; a bar housed within the housing, wherein the bar hosts a first set of teeth; a first arm coupled to the housing pivotally, wherein the first arm hosts a third set of teeth, wherein the first set of teeth is configured to mesh with the third set of teeth; and characterized in that: the bar further hosts a second set of teeth, wherein the first set of teeth and the second set of teeth are configured to mesh in opposing directions; the restraint device further comprising: a spring hosted within the first arm and engaging the first arm; and a second arm coupled to the first arm pivotally and engaging the spring, wherein the second arm hosts a fourth set of teeth, wherein the fourth set of teeth is configured to mesh with the second set of teeth when the spring is compressed, wherein the fourth set of teeth is configured to avoid meshing with the second set of teeth when the spring is not compressed, wherein the first arm is elastically coupled to the second arm in order to reduce or avoid overtightening when restraining. the bar further hosts a second set of teeth, wherein the first set of teeth and the second set of teeth are configured to mesh in opposing directions; the restraint device further comprising: a spring hosted within the first arm and engaging the first arm; and a second arm coupled to the first arm pivotally and engaging the spring, wherein the second arm hosts a fourth set of teeth, wherein the fourth set of teeth is configured to mesh with the second set of teeth when the spring is compressed, wherein the fourth set of teeth is configured to avoid meshing with the second set of teeth when the spring is not compressed, wherein the first arm is elastically coupled to the second arm in order to reduce or avoid overtightening when restraining. a spring hosted within the first arm and engaging the first arm; and a second arm coupled to the first arm pivotally and engaging the spring, wherein the second arm hosts a fourth set of teeth, wherein the fourth set of teeth is configured to mesh with the second set of teeth when the spring is compressed, wherein the fourth set of teeth is configured to avoid meshing with the second set of teeth when the spring is not compressed, wherein the first arm is elastically coupled to the second arm in order to reduce or avoid overtightening when restraining.