Squall Sailing Supplied Holt / Nautos 45mm Plain Bearing Swivel Block with Becket Swivel STOP - An anti swivel head moulding is supplied with the block giving the option to have it - fixed head or swivel COMPOSITE BODY - High tensile carbon composite body. Strong and lightweight PLAIN BEARING SYSTEM - Locking tri-rivet head maintains sheave rotation under higher loads USAGE - Mainsheet systems, Control Lines, Sheet Blocks, Vang Cascades, Cunningham Systems, Halyard Leads Line diameter: 4-10mm Shackle pin diameter: 4mm Breaking load: 800kg SWL: 300kg Weight: 82g |