Barton Size 3 Ball Bearing Block Single SwivelSize 3 Ball Bearing Block Single Swivel A strong, lightweight range of blocks for use on dinghies and dayboats or as lead blocks on larger craft. A comprehensive range of multiple sheave options, together with fiddles and cam cleat blocks, allows powerful, lightweight tackles to be achieved. With our unique super-low friction ball race systems, featuring acetal sheaves and delrin ball bearings, running on a large diameter centre boss. This allows us to fit more load-bearing balls, which ensure extremely low friction performance, even under high loads. Length mm: 107 Weight g: 90 |