HARKEN 100 mm Aluminum Black Magic Block - Swivel, Becket, 3247 Item Type_Accessories fold the Valise shut and

fold the Valise shut and tighten two captive assembly screws

A razor knife should be used to free the caulk from the side of the seam

and then engages the ratchet automatically as loads increase

The patented T2 Ratchamatic is Harken’s newest block to feature the T2 line's styling and soft-attachment system

the rivet can be used as a becket

HARKEN 100 mm Aluminum Black Magic Block - Swivel, Becket, 3247 Item Type_Accessories fold the Valise shut andBlack Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. Offered in 57 150 mm sizes, with low load versions in 57 and 75 mm ranges. A center cage keeps Torlon roller bearings separated and parallel to reduce friction. The sheave center carries the primary load,