Schaefer Stand Up Swivel Blocks
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.