Lewmar 40mm Control Single Stand Up Block is ideal for use with hand-held loads, Lewmar’s control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a stainless steel central race and balls provide a weight advantage, while Long Fibre Technology offers exceptional strength and durability. The open design allows sand and salt to be flushed out easily, keeping maintenance simple.FeaturesLightweightVery High StrengthImpact ResistantReduced FrictionEasy MaintenanceOptimised for hand controlApplicationsBall bearing blocks are typically used for medium and dynamic loads in:Control line applicationsMainsail sheets for dinghies and keelboatsSpinnaker sheets, barber haulersGenoa sheetsDinghy applicationsSpecificationsBrand: LewmarProduct Type: Stand Up BlockSize: 40mmColour: BlackMax Line Size: 10mmSafe Working Load Limit: 140kgLength: 76mmBreaking Load Limit: 475kgWeight: 170g