Harken 57mm Ratchamatic Block - SWIVEL

The Harken 57mm Ratchamatic Block - SWIVEL is designed for superior performance in a variety of sailing conditions. Featuring a load-sensing ratchet mechanism, this block rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. This seamless transition between ratchet and light-air modes provides smooth, controlled handling, whether you're dealing with high load or light wind conditions. The swivel design adds versatility, allowing for improved movement and flexibility during your sail. With a 10:1 holding power, this block ensures reliable performance for all your sailing needs.

Key Features:

Material: Lightweight, durable construction for long-lasting use

Load-Sensing Mechanism: Automatically engages ratchet as load increases

Swivel Design: Offers enhanced flexibility and movement

Performance: Seamless shifting between ratchet and light-air modes

Holding Power: 10:1 ratio for effective load management

Versatility: Ideal for both high and low-load conditions

Use: Suitable for all types of sailing and racing conditions

Size: 57mm diameter