Harken Carbo AirBlocks two-disc block/whirl/doggy dog

Harken Carbo AirBlocks two-disc block/whirl/dogsfoot low-friction Carbo AirBlocks® are light, strong and reliable. Harken Carbo AirBlocks are small, compact blocks with very high working speed and load capacity for safe, easy trimming, no matter how hard the wind blows. The ball bearings, disc and cheeks of the Harken Carbo AirBlocks are UV-stabilized and offer long-term protection against salt water and sun.