HARKEN Unit 1 Head Swivel, 7351.28 Sailboat Blocks & Hardware_57 mm Triple Carbo Block - Swivel and a unique Free Spin

and a unique Free Spin bearing to deliver performance that’s comparable to ball and roller bearing blocks used in racing but at a more affordable price

This 29mm cheek block with a curved base is ideal for mast-mounted turning blocks

and Delrin® sheaves

easy adjustments

HARKEN Unit 1 Head Swivel, 7351.28 Sailboat Blocks & Hardware_57 mm Triple Carbo Block - Swivel and a unique Free SpinUse with the Harken Reflex furling system. Head and tack swivels are permanently fitted to each sail. The integral thimble terminal for torsion cable saves weight; no fork, eye, or pin connections. Compact design reduces weight aloft, maximizes luff length. A padded cover prevents damage to spars. Use with furling unit Reflex Unit 1