Keeps not, unfortunately, not a good quality.

I had bought the set from the hot shoe and 1/4 '' threaded ball head and have been sadly disappointed in both, both were made of metal and have initially made a good impression, but then shown in action crucial weaknesses.

An attachment to the hot shoe is virtually no sense possible because the concept was not thought through, either screwing the hot shoe firmly then the tripod head loose or just the other way around, if you can then continues through the head (which is of course not always possible), would be useful here zV a second plate or a permanent attachment of the adapter to the ball joint or similar basis, in other hotshoe mounts that finally works well. In addition, the whole by turning loose is so firmly baked in yourself that you need a pair of pliers to loosen the Verbingung ...

In addition, the fixing screws of the tripod heads keep unfortunately absolutely nothing when the fixed attracts the head continues to move, and therefore benefit the whole course not. In addition, the locking screw was in one of the heads tighten already the second time around crazy in spite of proper handling.
I can not understand the reviews here, the things are useless in my opinion. I am aware that are not designed for heavy loads, but if a tripod head can not even hold my cell phone, I can use him either.

Positive to mention at this point the problem of withdrawal Article by Com-Four, but I can not recommend this product simply good conscience. Maybe I was unlucky and 2 Monday models, otherwise I can not rave reviews here understand.