A beverage dispenser for gravitationally dispensing a liquid from a bottle such as standard sized bottles commonly used in the drinking water industry. An anchor wire has a distal end connected to the distal end of the core and a distally located helical portion that encircles the core. The arm support may at least partially offset a gravitational force acting on the arm as the user moves and the arm support follows the movement of the user’s arm. 29 and a dielectric constant of about 5.