The training device 1 wherein {HEAD ~ the device} is shaped to ergonometrically accommodate the hands of {TAIL ~ a user} 
The training device 1 wherein { HEAD ~ the device } is shaped to ergonometrically accommodate the hands of { TAIL ~ a user }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL