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