Barton Marine Size 0 20mm Ball Bearing Pulley Block Triple With Swivel Margin+5 A single RS90 system can

A single RS90 system can run up to six separate stations: four wired

MORA® "Blue" Replacements blades with 4 blade screws

000 hours of continuous use

single-piece aluminum construction for superior strength

Barton Marine Size 0 20mm Ball Bearing Pulley Block Triple With Swivel Margin+5 A single RS90 system canThe Barton Size 0 ball bearing block has 20mm (3 4") sheaves and is also available in plain bearing sheaves. Designed for high strength and performance but lightweight with the range starting at only 13gms (0. 5oz). Suitable for up to 6mm (1 4") rope Ideal for use on dinghies, day boats and smaller craft or lead blocks, flag pennants etc. on larger yachts