Ronstan Series 75 blocks

Ronstan Series 75 blocks feature Core Blocks Technology. Core 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 cruising and racing.