The primary object of the invention is to provide {HEAD ~ a rubber locking device} for {TAIL ~ a bicycle seat bag}, which can allow detachment from the seat bag without utilizing any tool and obtain the purpose of convenient use 
The primary object of the invention is to provide { HEAD ~ a rubber locking device } for { TAIL ~ a bicycle seat bag } , which can allow detachment from the seat bag without utilizing any tool and obtain the purpose of convenient use
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH