These terminals offer an easy way to securely attach a flash unit to a tripod. Shortcoming: very sharp edges (you can but with a file quickly fix); The terminals do not stop (in the dark to be taken on it, that the flash is in position); And the contacts of my Nikon SB 910 touch the terminal (I have to stick to it, so that the flash his service done scotch tape as an insulator). As the price but the type is favorable, I had to get even the expectation of a product without any errors.
In short, not without fault, but with great possibilities.