{TAIL ~ Spikes} allow the guide bars to be connected to the trunk of {HEAD ~ the tree} in horizontal, parallel positions on opposite sides thereof 
{ TAIL ~ Spikes } allow the guide bars to be connected to the trunk of { HEAD ~ the tree } in horizontal , parallel positions on opposite sides thereof
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH