How do I assemble & adjust my microfiber duster?Updated a year ago

ADJUSTABLE POLE:
Turn pole continuously until it locks into position. After initial use, it will only require a small twist to readjust and lock the pole to your desired length.           
                                     

ADJUST & ASSEMBLE:
To attach duster head to extension pole, screw the pole in to the threads in handle of the duster head turning clockwise until snug.           

To remove duster head, simply unscrew counter clockwise.