The quality is good and the installation pretty simple. HOWEVER, I specifically ordered this product due to the extension rods and there was absolutely NO explanation how to use them.  I finally had to google, 'issues with Kenny decorative ball double curtain Rod', and found the explanation on Amazon in their review remarks.  Having been frustrated already this day with an IKEA bookcase, I find it absolutely inexcusable to sell a product that requires assembly without full and complete instructions.