This flash/umbrella holder is cheap. It broke the first time I used it. While attaching it to the lightstand, the base of the product - which is plastic - snapped in half. The product has been unusable ever since. I am very dissatisfied.
I have since purchased a Manfrotto umbrella holder to replace it. MUCH BETTER! Do yourself a favor and fork out the extra money for a high quality ALL-METAL Umbrella/Flash holder.