Medium-duty aluminum twist-lock telescoping extension pole. Standard thread. No. 82024: Size: 2"-4", Type: Telescoping, Locking Mechanism: Twist Lock, Material: Aluminum No. 82048: Size: 4"-8", Type: Telescoping, Locking Mechanism: Twist Lock, Material: Aluminum No. 82612: Size: 6"-12", Type: Telescoping, Locking Mechanism: Twist Lock, Material: Aluminum