Use swivel bases when leads must rotate to face the trimmer. Ball bearing swivel bases feature dual rows of Delrin® ball bearings to ensure that they swivel freely even under high loads. The bases include a stop that prevent the base from swiveling completely and fouling lines.
• Use for mainsheets, jib sheets, and control lines
• Models 205, 402 are suitable for 57 mm (2-1/4") blocks
• Models 144 is suitable for 57 mm (2-1/4") or 75 mm (3") blocks
• Model 1574 is suitable for 76 mm (3") midrange blocks
• Note: models 238, 239, 379 do not swivel