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The FLOWCINE Extension Arm adds 2.2 to 4.5" to the Serene 2-Axis Spring Arm in less than 1/2" increments, which allows a much longer boom range and smoother performance in vertical stabilization. It comes with extra heavy-duty spring for Serene to allow maximum load of 33 lb at maximum extension and 43 lb at minimum extension.
In the Box
FLOWCINE 2.2 - 4.5" Extension Arm for Serene 2-Axis Spring Arm