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