Ronstan Series 45 Core Block - Halyard, Swivel Fork Head 2187 Rolco or M

Rolco or M

OJ 162 Blade Shape

and to keep it all spinning in style under constant tension a billet aluminum belt tensioner

Continuous length 304 grade stainless steel hinge

Ronstan Series 45 Core Block - Halyard, Swivel Fork Head 2187 Rolco or MCore 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