The extension connects the energy source to {TAIL ~ the distal end} and is formed of {HEAD ~ a material} that can be easily flexed by hand to assume a multiple of different shapes and angles, and which can retain a given shape indefinitely 
The extension connects the energy source to { TAIL ~ the distal end } and is formed of { HEAD ~ a material } that can be easily flexed by hand to assume a multiple of different shapes and angles , and which can retain a given shape indefinitely
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH