Adding artificial light to underwater photography is the key to better Image. Having the best platform to help provide that lighting is as important as the artificial light itself. Having the ability to use an external strobe/video light can drastically improve the quality of your underwater photographs. Being able to aim that strobe/light exactly where you want it to illuminate your subject takes the use of a strobe/light arm. The Bigblue Accessories Series employs the latest designs that cater to different photographic and video systems. By utilizing the best possible materials on the market, such as T6061 grade aluminum, stainless steel, fiberglass reinforced resin, etc. Bigblue's series meets the demand for high quality with affordability.The Bigblue Flex Arm Series. The 7" (17.8cm) or 9" (22.9cm) flexible camera arm fits ball joint clamps suitable for 1" (2.54cm) ball joints. The arm has six or eight flex joints that allow you ultimate angling of your light or strobe. Ball joints have friction O-rings to keep the light angle fixed when clamps are snug to fit.