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.
Australia's largest marine accessories retailer. Serving boat owners since 1962. With sixteen big supermarkets and mail order departments Australia wide Whitworths Marine & Leisure offers the best service, convenient locations, a huge selection of quality products, and unbeatable prices.