Arm apparatus for mounting electronic devices

A forearm extension for use in an extension arm that adjustably mounts a device to a support mount, said forearm extension comprising a body formed by a pair of spaced apart sidewalls, a top wall and an open bottom, said sidewalls forming an open interior portion of said body;

• a first coupling formed from a first walled member providing an opening therein, said first walled member including an inner surface having a plurality of voids formed therein surrounding said opening, said first coupling rigidly attached to one end of said body which precludes relative movement between said second coupling and said body;
• and a second coupling formed from a second walled member providing an opening therein, said second coupling rigidly attached to the other end of said body which precludes relative movement between said first coupling and said body, said first and second walled members preventing communication between said openings in said first and second couplings and said interior portion of said body, wherein said first coupling has a top end and a bottom end, said plurality of voids extending between said top and bottom ends.