Fongarein, Fongarehere, Fongaregood
This universal diffuser claps onto the font of any speed light flash to diffuse the light and fill it into the shadows of your picture.
No more Panda Eyes on your bridal portraits and no more couples caught like rabbits in the headlights at parties. Soft fill in that goes out to the edges of an interior - but doesn't burn out the main subject.
The new universal velcro strap secures it to any flash - I know because I just got up from the laptop right now to try it on a new Nissin i40 - and you have a far better fill than could be obtained with the little box diffusers.
We've got a stack of them in store right now.