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