The device 6, wherein the vertical projection comprises a stem and {TAIL ~ a top portion}, and wherein the stem is slimmer than {HEAD ~ the top portion} 
The device 6 , wherein the vertical projection comprises a stem and { TAIL ~ a top portion } , and wherein the stem is slimmer than { HEAD ~ the top portion }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD