An apparatus 11, wherein said means for temporarily locking said inner grip comprises means for temporarily locking said second end in {HEAD ~ a position} extended from {TAIL ~ said second open end} of said outer grip 
extended from
An apparatus 11 , wherein said means for temporarily locking said inner grip comprises means for temporarily locking said second end in { HEAD ~ a position } extended from { TAIL ~ said second open end } of said outer grip
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH