Ronstan RF41110 40mm Single Block with Becket | Light-Duty PulleyThe Ronstan RF41110 is a lightweight and compact 40mm single pulley block with becket, designed for light load applications on dinghies, tenders, and small boats. Its becket provides a convenient tie off point, making it ideal for cunninghams, outhauls, flag halyards, and other simple control systems. This light duty marine block is built with UV resistant materials for long term durability and features a smooth sheave for reliable line handling. A

compact size

the RF51110 is built for performance on dinghies

40‑Series  Ball Joint (¼″–¼″)

Designed for sailors who prefer traditional

offshore passage-making

Swivel shackle head – self-aligns under load for efficiency

Ball bearing system – low friction

Wide temperature range (-40°C to +110°C)

Built by Christine Products — New Zealand’s trusted trailer components manufacturer since 1975

The Reid Rubber Straight Roller – 230mm is a heavy-duty boat trailer roller built for smooth

Trusted Andersen quality – engineered in Denmark

and survival procedures