The Chinook Sailing Pro-1 Boom Head with RDM Adapter is designed to be torsionally rigid with increased mast contact area providing positive rig response. Fully articulating, it fits standard and reduced diameter masts with an inter-locking skinny adapter. No need to fuss with extra parts. Standard on all Chinook Pro 1 Alloy Booms. Fits tube diameter 33.5mm +/- 1mm x approximately 88mm wide.
Includes RDM adapter