Harken 40mm Carbo Triple Swivel Block w/Becket Thistle Deck Hardware It is compatible with many

It is compatible with many surfaces and will not harm most glass

The angle on the track goes forward

Use this sheave to divert a line that must turn in either direction

Treated with Duracoat for UV Resistance

Harken 40mm Carbo Triple Swivel Block w/Becket Thistle Deck Hardware It is compatible with manyHarken 40mm Carbo Triple Swivel Block w Becket Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming. Technical Description Sheave (mm) 40 mm Sheave (in) 1 9 16 in Length (mm) 110 mm Length (in) 4 5 16 in Weight (g) 122 g Weight (oz) 4. 7 oz Shackle pin (mm) 5 mm Shackle pin (in) 3 16 in Maximum