Barton Size 1 Ball Bearing Block Upright A strong, lightweight block ideal for use on dinghies and dayboats or as lead blocks on larger craft. With or without fairlead. Fairlead prevents line from falling away when not under load, fastenings 5mm. Sheave size: 30mm x 12mm (1 3/16 x 15/32inch) Max rope diameter: 8mm (5/16inch) SWL: 350kg (771lbs) Break load: 700Kg (1543 lbs) Length: 53mm Weight: 62g
