The MH-656 quick release system with matching camera plate is compatible with style of plates and components that fit the "Arca Swiss" standard such as Arca-Swiss, Graf/Studioball, Wimberley, Foba, etc.
It is an ultra-compact "clamp" style quick release system, which features both horizontal (on the base of the adapter) and vertical (incorporated into the locking knob) bubble levels, as well as anti-twist reversible tabs on the plate that prevent slippage when using the head in a vertical position.
This sliding camera plate locks down by turning the side-mounted locking knob. A safety push-button lock found on the side of the adapter is designed to add additional security.
The Giottos MH-656 is popular because customers like the following qualities of the Giottos MH-656: Attaches firmly, Stable and Strong clamp