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The Schaefer Stand Up Swivel Blocks are excellent for fixed position halyard, sheet or control line fairleads. Block swivels 360º, tilts in all directions and is supported by a heavy gauge S.S. sprint to prevent deck contact. Large diameter base helps distribute loads to a larger surface area than other smaller designs.
The new M-Series Schaefer Stand Up Block features Aluminum sheaves with Torlon™ rollers and Delrin™ ball bearings for superior strength and low-friction. Machined center allows the hub to be used as a bracket.
Schaefer Stand-Up Swivel Blocks
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