a support unit for supporting {TAIL ~ the second end portion} of the stopper, {HEAD ~ the support unit} being provided to the electronic device, 
a support unit for supporting { TAIL ~ the second end portion } of the stopper , { HEAD ~ the support unit } being provided to the electronic device ,
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH