It's because of this ErgoRest Articulating Arm Support that I can sit at my computer for hours on end being productive (or not so productive) with virtually no forearm/wrist strain. Tis' a beautiful thing. Costly because you buy them individually and not by the pair, but my comfort level and transcript productivity paid for it alone in the first week of use. Well worth it. An extra shout out from my back and shoulders as well.