https://trotac.ca/sailing-hardware/deck-hardware/blocks-low-friction-rings/?price_min=229&price_max=332&sort=featured
Sailing Hardware - Deck Hardware - Blocks & Low Friction Rings - Page 1 - Trotac Marine
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https://dinghy.seldenmast.com/collections/low-friction-rings
Low Friction Rings for Dinghies - Seldén Dinghy Store
Seldén low friction rings in black anodised aluminium for backstay cascades, barber haulers, kicker tackles and other static load applications. A lighter and...
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