Single Blocks

40mm Carbo Single Ratchet Block with Swivel & Becket Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. 2608, 2609, and 2614 have on/off switches. Features: Sheave Ø (mm): 40...

57mm Carbo Air Block with Swivel Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming...

75mm Carbo Air Block with Swivel Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming...

40mm Carbo Air Fiddle Block with Swivel & Becket Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe,...

40mm Carbo Air Fiddle Block with Swivel Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming...

40mm Carbo Single Fixed Block Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming...

40mm Carbo Block Single with Swivel & Bracket Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe,...

40mm Carbo Single Ratchet Block with Swivel Becket & Cam Cleat Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.  Features: Sheave Ø (mm): 40 mm Sheave Ø (in): 1-9/16 in Maximum...

40mm Carbo Single Ratchet Block with SwivelCarbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. 2608, 2609, and 2614 have on/off switches.Features:Sheave Ø (mm): 40 mmSheave Ø (in): 1-9/16...

16mm Forkhead Block The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum...