Ronstan Series 75 Core Block - Halyard, Screw Pin with Roller head skitube The unique sheave design has

The unique sheave design has 8 gripping faces which directly resist loaded line movement

magnesium and painted surfaces

Allows fast

along with HAS44 clamps designed for 60-80mm outlets

Ronstan Series 75 Core Block - Halyard, Screw Pin with Roller head skitube The unique sheave design hasCore 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