Harken® Carbo AirBlocks® are 60% stronger and 30% lighter than Harken's Classic blocks.

The nylon-resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Sheaves spin on high-load ball bearings with fitted races for low-friction operation. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection.

Use the 40-mm Carbo on high performance dinghies to:

• fine-tune control on jib and mainsheet systems
• handle loaded control lines on small keelboats.
• smooth adjustment of vangs, cunninghams, and outhauls.