Bests & Worsts Reviews from Amazon

This absolutely will not fall off your flash, if mounted correctly. See pictures to explain how to mount. The velcro strap that mounts to your camera uses no adhesive, but has very strong "sticky" friction surface on one side -- so it won't goo up your flash, can be removed when you want to, but will not fall off on it's own. Even pulling on it, is very difficult to get off. This softbox is just the right size so that once folded, it can fit in a small camera bag. Also has windows on top and bottom of softbox that you can secure open or closed with velcro attachments. Those might be useful to throw some flash up and back for bounce effect. Its construction is excellent - should be quite durable, not just a cheap plastic item. It will fit any flashgun with reasonably standard dimensions - see photos. So I give 5 stars because of it's construction and secure mounting. But take a star away because I'm really not convinced that it softens any shadows in the test photos I've taken so far -- I cannot see a difference with the device on or off. I'll give it some more tries, but I'm thinking this is just too small to adequately diffuse light - it cannot replace a shoot-through umbrella for sure. But for the price - I'd little reason not to try it for yourself.