Harken Two-pack — 1.5x & 2x Grip 57 mm Ratchet Carbo Air Blocks

Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their set-ups in tandem with the purchase that provides the ideal level of power, responsiveness and grip.

On/off switch operates from both sides.

1.5x grip: breeze–on/puffs; 15:1 holding power.
2x grip: big breeze/steady: 20:1 holding power.