RONSTAN 60 mm Core Stand Up Block - Swivel, RF64140 Brand_Lewmar Durable construction ensures reliable performance

Durable construction ensures reliable performance in sailing applications

it is the only handle to feature an auto Quick-Lock™ mechanism that allows you to place the drive head straight into the winch socket without the need to depress or rotate a knob

highly loaded systems using modern line technology and reduced line diameters

Great for Cunninghams

RONSTAN 60 mm Core Stand Up Block - Swivel, RF64140 Brand_Lewmar Durable construction ensures reliable performanceCore Blocks is a true all around solution. For reliability and long service life, these blocks are the right choice for sheets, halyards, and control line applications for cruising and racing. Universal Bearing: A tuned two 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. Stage 1: Under moderate loads, Acetal ball