The apparatus includes a body structure having {TAIL ~ a rotational axis}, {HEAD ~ a discrete hollow structure} and at least one dampening member 
The apparatus includes a body structure having { TAIL ~ a rotational axis } , { HEAD ~ a discrete hollow structure } and at least one dampening member
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH