Does what it is supposed, is too expensive and you should always have a pair of pliers in the vicinity.

I have a part in connection with the Manfrotto buttstock. I often use it but also individually, for example, a tripod head to screw on a monopod. In my work the sound! Because of the rubber pad that thing keeps rock solid, and that's about the problem: if you then unscrew the bolt-on of the below 1/4-inch-part again, the adapter can stay tuned on the tripod head. And because the disk is so thin you the adapter may also refer not unscrew by hand.
Therefore, you should always have a so-called. Wasserpumpenzange near. Especially on the way
A kind of lever or other deformity on one side of the disc would be handy. And the price is felt 100% too high. Stay 3 stars left.