The swing training device 20 can be sold with instructions that tell the golfer the proper size to adjust the length of {TAIL ~ the swing training device} for {HEAD ~ golfers} of different sizes 
The swing training device 20 can be sold with instructions that tell the golfer the proper size to adjust the length of { TAIL ~ the swing training device } for { HEAD ~ golfers } of different sizes
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH