Carbo Air Block - 29 mm (1 1/8") - Single with Swivel
Complete Your Purchase
Harken Carbo Air Block - 29 mm (1 1/8") - Single with Swivel
Low-friction Carbo Air Blocks are lightweight, strong, reliable, and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. The compact 29 mm Carbo is extremely strong and can be used as a mainsheet block on small dinghies such as the Optimist, or as low-friction control blocks on any size boat.
The Harken 29 mm Carbo Air Block delivers smooth, efficient line control in an ultra-light, durable design. With a swivel option, UV-stabilized components, and a high working load, it outperforms classic blocks while saving weight for easier, safer sail trimming.
Key Features
- Open Air Block design eliminates unnecessary material and weight
- Ball bearings, sheave, and side plates are UV stabilized with carbon black for maximum protection
- Patented switch locks shackle in front or side positions, or lets block swivel to keep line from twisting
- 30% lighter with 60% higher working load than Classic blocks
- Designed for main/jib sheets, mainsheet fine-tune, control lines, vangs, cunninghams, and outhauls
- Ideal for small dinghy applications and low-friction control on larger boats
