Ronstan Series 75 Core Block - Single, Universal Head ronstan ball bearing series 40 - double becket swivel shackle head 3 x seals suits both

3 x seals suits both older Key shaft & new Flat Shaft

Gauge type: Trim gauge

Stay secure on the water with this top-quality mooring marker

as per picture

bolts & washers

Ronstan Series 75 Core Block - Single, Universal Head ronstan ball bearing series 40 - double becket swivel shackle head 3 x seals suits bothCore 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