Adaptive Technologies Group PM-DA-48-G Indoor/Outdoor Standard Speaker Pole Mount Dual Adapter - 48"The PM G Series support arm is produced from galvanized steel. The Dual Adapter is an innovative way to mount and aim two loudspeak ers and other objects (of equal weight and mass) from the same Pole or column. A variety of available mounting holes permit speakers to be installed closer or further from the pole to provide clearance for different down tilt angles. The Dual Adapter is produced from galvanized steel and hardware is included to secure it