When stretching the umbrella, {HEAD ~ the protruding button} at the fastening device is steadily locked at {TAIL ~ the fastening orifice} at the fixing portion to smoothly stretch the umbrella 
is steadily locked at
When stretching the umbrella , { HEAD ~ the protruding button } at the fastening device is steadily locked at { TAIL ~ the fastening orifice } at the fixing portion to smoothly stretch the umbrella
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH