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Ronstan's 29mm Narrow Utility Blocks are lightweight, durable, economical, and maintenance free. They have grade 316 stainless steel cheeks and UV-stabilized Acetal sheaves and are used in vang, cunningham, and trapeze retriever systems on dinghies. They are used as leech line tackles and bunk adjusters on larger yachts.
This double block's hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase.
