Ran on to this thing while looking for tackle the disabled can use . Vaguley remember something like it . Can somebody tell me how it works .
http://www.ebay.com/itm/ERCOA-3000-...921?pt=LH_DefaultDomain_0&hash=item5405b9a359
http://www.ebay.com/itm/ERCOA-3000-...921?pt=LH_DefaultDomain_0&hash=item5405b9a359