Ronstan Series 60 Core Block - Single, Universal Head pulley Comfortable over the shoulder leg

Comfortable over the shoulder leg straps

Used for a variety of uses including Steering

Al head with full 3-axis articulation

Impeller suits pump shaft with two flats (as apposed to old style one flat)

Ronstan Series 60 Core Block - Single, Universal Head pulley Comfortable over the shoulder legCore Blocks are a true all round solution. A tuned 2 stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for