Harken 29mm Carbo Air Block - Fishing. The Carbo Air block is much lighter and stronger than any analogue design ever made. A revolution in composite material design the Carbo Air series has created an entirely new product class. Carbo Air composite blocks have extremely high breaking loads and are ideal for many applications where composite material would normally be cost prohibitive. The Carbo Air series features exceptionally good impact resistance while also having very low running friction. Carbo Air blocks in 29mm can be used anywhere you would like. Small and very compact the Carbo Air series can handle all your special requirements. Whether for kite fishing kayaking or on a larger rig the Carbo Air series will not let you down. Specifications for Harken 29mm Carbo Air Block: Manufacturer: Harken Length: 29 mm Color: Black Quantity: 1 Package Contents: Harken 29mm Carbo Air Block Harken 348F: 29mm Carbo Air Block - Fishing