The camera mountable arm 6, wherein the third segment has {HEAD ~ a substantially hollow interior} which when filled with water provides {TAIL ~ immersability} to the camera mountable arm 
provides
The camera mountable arm 6 , wherein the third segment has { HEAD ~ a substantially hollow interior } which when filled with water provides { TAIL ~ immersability } to the camera mountable arm
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH