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