The jibboom is now fully stayed with four cables: Two on each side back to the wooden catheads and two underneath, first passing through the dolphin striker, and then also back to the catheads. All four are tightened with turnbuckles. Radiator clamps are holding the cables to the jibboom itself. The 10 lb dumbbell hanging down is tightening one of the chains helping to support the bowsprit.