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.
- Sheave: 57 mm / 2 1/4 in
- Length: 110 mm / 4 5/16 in
- Weight: 269 g / 9.5 oz
- Shackle pin: 5 mm / 3/16 in
- Maximum line: 10 mm / 3/8 in
- Maximum working load: 136 kg / 300 lb
- Breaking load: 340 kg / 750 lb
Single Block w/ Cam Cleat
Shipping & Returns
Delivery Info: Enjoy Free Standard Shipping on most orders* to the Continental United States over $75. Our Standard Shipping method utilizes USPS, UPS, and FedEx to send packages near and far. Oversize/Freight shipping (where applicable), Expedited Shipping (where available), and rates to other destinations will be calculated at checkout.
See our Shipping Page for more information (and exceptions).
Returns Info: Your 100% satisfaction is our goal - we want you to love your sailing gear, but if something doesn't work out, we accept returns on most new, unused items*. Returns can be made within 366 days (1 year + 1 day) of your original order date. Exceptions include (and are not limited to) cut line, Rig Shop products, special order items, numbered sailors, and items used or worn sailing.
See our Returns Page for more information.