This little gadget throws the light off the diffuser & over the subject, delivering ample light but at the same time not as harsh as if the flash was pointed directly. I guess you could just use a silver card, but it won't be as flexible. This attaches securely to the flashgun & because it`s flexible you can throw more or less light at the subject. Great for taking small group portraits at parties, events etc.
Very happy with the product itself & for the price I can't complain at all. Keeps the tablet safe & secure. However we were suppose to get some protective screen covers with it, which were not sent. I have emailed seller twice. On both occasions they stated they will ship, but a month on now & we still haven't received everything we paid for. So for that it doesn't full the full marks which it would have got.