HARKEN 40mm Carbo Air® Single Block with Becket, 2637 Blocks_Carbo Air Blocks solid aluminum and compact captive

solid aluminum and compact captive ball (CB) travelers are built to handle very high loads

The 16 mm is Harken’s smallest block

Low-friction Bullet blocks lead control lines aft

Toggle cars have low pivot points (for efficient load transfer) and let you fasten mainsheet and control blocks directly to the block swivel post

Other features include an adjustable back support

HARKEN 40mm Carbo Air® Single Block with Becket, 2637 Blocks_Carbo Air Blocks solid aluminum and compact captiveThe Harken 40mm Carbo Air Single Block includes an integral becket that allows either a 2: 1 or 3: 1 purchase. Low friction Carbo AirBlocks are lightweight, strong, reliableand economical. Consistently 30% lighter and 60% stronger than equivalent Classic blocks. The side plates are UV stabilized, high strength resin and designed for small diameter lines favored by racers. Good for jib and mainsheet systems on high performance dinghies, and for high