A resilient vinyl bumper insert is formed with T shaped in section projections which interlock in {HEAD ~ the outer grooves} of the channel thereby securing {TAIL ~ the bumper} to the channel 
securing
A resilient vinyl bumper insert is formed with T shaped in section projections which interlock in { HEAD ~ the outer grooves } of the channel thereby securing { TAIL ~ the bumper } to the channel
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH