{TAIL ~ The runner} 44 is accommodated at the fixing portion 431, and is capable of {HEAD ~ up and down sliding movements} at the fixing portion 431 
{ TAIL ~ The runner } 44 is accommodated at the fixing portion 431 , and is capable of { HEAD ~ up and down sliding movements } at the fixing portion 431
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 HEAD OTH OTH OTH OTH OTH