{HEAD ~ The rubber locking device} for a bicycle seat bag 1, wherein said {TAIL ~ rubber ring} is provided at one end with a pull and anti slip roughness 
wherein
{ HEAD ~ The rubber locking device } for a bicycle seat bag 1 , wherein said { TAIL ~ rubber ring } is provided at one end with a pull and anti slip roughness
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH