Single Blocks

The high-strength composite T2™ is the first block with no metal shackles or rivets. It is used for traveler controls, mainsheets and vangs, cascades, bridles, and other systems where small, lightweight blocks are called for. The T2 Loop’s...

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. Sheave: 40 mm / 1 9/16 in Length: 86 mm / 3 3/8 in Weight: 49 g / 1.7 oz Shackle pin: 4...

The patented T2 Ratchamatic is Harken’s newest block to feature the T2 line’s styling and soft-attachment system. The weight of this high-strength block is only a few ounces. This is thanks to composite fiber-reinforced sideplates,...

The high-strength composite T2™ is the first block with no metal shackles or rivets. It is used for traveler controls, mainsheets and vangs, cascades, bridles, and other systems where small, lightweight blocks are called for. The T2 can be tied,...

Harken soft-attach Fly blocks are designed to provide strength without mass, providing sailors with big power in a low-aero package. Designed specifically for high-tech line, these efficient blocks have an incredible working load for their small size...

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. Sheave: 40 mm / 1 9/16 in...

40mm ball bearing block from Ronstan in single block with loop top configuration. This 40mm range features sheaves running on Acetal bearings that provide high performance & low friction. The 2-stage ball bearing system provides consistent...

40mm ball bearing block from Ronstan in single block with becket configuration. This 40mm range features sheaves running on Acetal bearings that provide high performance & low friction. The 2-stage ball bearing system provides consistent performance...

40mm ball bearing block from Ronstan in single stand up block configuration with a small stainless base and spring. This 40mm range features sheaves running on Acetal bearings that provide high performance & low friction. The 2-stage ball bearing...

40mm single block from the Ronstan All Purpose (AP) blocks range, a great all around solution for a variety of rigging applications. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads...

40mm single block with becket from the Ronstan All Purpose (AP) blocks range, a great all around solution for a variety of rigging applications. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with...

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. Sheave: 57 mm / 2 1/4 in...

The high-strength composite T2™ is the first block with no metal shackles or rivets. It is used for traveler controls, mainsheets and vangs, cascades, bridles, and other systems where small, lightweight blocks are called for. The T2 can be tied,...

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. Sheave: 57 mm / 2 1/4 in...

The high-strength composite T2™ is the first block with no metal shackles or rivets. It is used for traveler controls, mainsheets and vangs, cascades, bridles, and other systems where small, lightweight blocks are called for. The T2 can be tied,...

The Frederiksen ratchet block is legendary. It is light and very strong for optimal performance. The ratchet has a small distance between each click to enhance control of sheets. This is the ideal Laser mainsheet block. From Ronstan: The patented...