Ronstan RF41101 40mm Single Loop Block | Light-Duty Marine PulleyThe Ronstan RF41101 is a compact, lightweight 40mm single loop block ideal for light load rigging systems. Designed for simple and secure attachment, its loop head makes it perfect for fixed applications like flag halyards, small control lines, and utility rigging on dinghies and small keelboats. Part of Ronstan's trusted light duty hardware range, the RF41101 offers smooth operation, a minimal footprint, and UV resistant materials to ensure

Compact & Lightweight Design – Stores easily with lifebuoy system

Seaworld brand

000 — perfect for inshore navigation and route planning

and yacht racers worldwide

it provides dependable buoyancy and freedom of movement for safe and comfortable wear on the water

Line entry "L" (mm) - 28

Weight (kg) - 3

✅ Reversible pump mounting (left or right‑hand operation)

It features a durable

General-purpose control lines

designed for secure access to lockers

long-life marine design