Low-friction Harken Carbo Air blocks are lightweight, strong, and reliably affordable, built as a companion line to Harken’s popular Black Magic blocks with very high working loads for their size.
The double swivel configuration handles higher loads than a single sheave while still rotating freely to keep the lead fair.
Rated to a 970-lb maximum working load, it’s built for safe, easy trimming without adding unnecessary weight to the rig. See what else we carry in sailing hardware.
- Rated to a 970-lb maximum working load
- Lightweight, low-friction Carbo Air construction
- Companion to Harken’s Black Magic block line
- 40mm sheave
