Features:
Subtend & Bidirectional modes.
arca swiss Double clamp fits all Arca-Swiss standard quick-release plates.
Scratch-resistant anodized black finish.
Dual captive screw-knob clamps.
Safety stop relief grooves prevent your equipment from dropping accidently.

Package included:
1 x ZC-50CPB Subtend & Bidirectional Clamp
1 x Wrench
The ZC-50CPB Subtend & Bidirectional Clamp features double clamps that will fit any standard Arca-Swiss style quick release plate.
The dual screw-knob clamps allow you to mount Arca-Swiss standard plate on the top and bottom simultaneously, or mount the clamp to a multi-purpose rail and then mount a Arca-Swiss standard plate to the top so you can move your set-up along the rail without moving your tripod or camera support.
Subtend & Bidirectional modes.Detachable design, It can be reassembled by unscrewing the middle screw
Scratch-resistant anodized black finish.