Ronstan Series 75 Core Block - Single, Universal Head seat pedestal 5m removable loops used to

5m removable loops used to vary the overall length

Luminous label for low light vision

The system enables installation of the track over an existing luff groove without lowering the mast

Fully articulated stand-up

select if your flap is 88mm or 94mm dia rubber

Ronstan Series 75 Core Block - Single, Universal Head seat pedestal 5m removable loops used toCore 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