{HEAD ~ The tubing reel} is biased in {TAIL ~ a retracting direction} and includes ratcheting and releasing means for selectably paying out or retracting the tubing 
is biased in
{ HEAD ~ The tubing reel } is biased in { TAIL ~ a retracting direction } and includes ratcheting and releasing means for selectably paying out or retracting the tubing
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH