HARKEN 40 mm Double Carbo Block - Swivel, 2638 Size_Boats 36'-46' Roller bearings handle high loads

Roller bearings handle high loads better than ball bearings

and efficiency

Stainless steel rope guides ensure correct entry alignment of the line into the cleat so it can be gripped securely by the cams

The injection-molded composite top plate provides superior impact and UV resistance

Ultra-light winch handles that float if dropped overboard

HARKEN 40 mm Double Carbo Block - Swivel, 2638 Size_Boats 36'-46' Roller bearings handle high loadsLow friction Carbo Air blocks are lightweight, strong, reliable, and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming. These smooth running powerful performers make trimming easy, no matter how hard the wind blows. Carbo Air blocks are made of tough reinforced composite in size and style to fit any system: singles, doubles, triples, quads; ratchets and