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