Ronstan Series 45 Core Block - Single, Swivel Shackle Head ronstan stand-up base - suits series 70 ball bearing ratchet orbit blocks New Improved Made from Billet

New Improved Made from Billet Aluminium - Made in Aus by Cassell Marine

Cowl mouth has a rolled edge for safety and added stiffness

Made of 8mm heavy duty rope with pulley

5 GPM - 19 litres per minute output

Ronstan Series 45 Core Block - Single, Swivel Shackle Head ronstan stand-up base - suits series 70 ball bearing ratchet orbit blocks New Improved Made from BilletCore 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