59-014 - Swing Rig Block, joins booms to mast, Black Alloy

59-014 - Swing Rig Block to join booms to mast - Black Anodised Alloy with 14mm diameter hole for mast - to fit 14mm mast or you can fit a 12mm mast with 14mm carbon collar or use 59a adaptor available for 12.7mm mast.
This block has a transverse hole for fitting a GIZMO if you choose