Aluminium double ball arms with one inch ball joint.  Each ball arm has at least one threaded hole for adding the Dive Lantern 1" Ball Mount can screw into giving another ball mount on the arm.  This can be used for additional lights such as focus lights and snoot lights that are light and don't need to be at the end of the main arms. 

Material:  Anodised aluminium

Lengths: 5"/13cm, 7"/18cm 9"/23cm and 11"/28cm

Ball size: 1"/25mm