This Fantasea flex arm is 11.8" (30 cm) long. The arm could be attached to a Fantasea digital SLR housing handle or tray. It could also take the place of the 2.75" flex arm that comes standard with a lens port bracket.
The flex arm allows a strobe or light to be positioned at any angle. The arm is compatible with Sea & Sea strobes. Head adapters are available for Ikelite and Inon strobes.