Blocks

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 working load...

Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Sheave: 29 mm / 1 1/8 in Length:...

Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. Sheave: 1 1/2 in Weight: 2.75 oz Shackle pin: 1/4 in Maximum wire: 3 mm Maximum line: 3/16 in Maximum working load: 1500 lb Breaking load:...

The Ronstan wire block is small and compact. It is made from advanced fiber and polymer technology, making them ten times stronger than steel, yet more lightweight. Use for 420/FJ/V15 Jib Halyard Block  20mm Ball Bearing Lightweight High working...

Designed to work well as a primary lead block on dinghies and catamarans or for control lines on larger yachts, the Ronstan 30 mm ball bearing block range features sheaves running on Acetal ball bearings for high performance and low friction. The 2-stage...

Harken® Lead Rings are simple, weight-saving devices used to route line for jib in-haulers, twings, barberhaulers, lazy jacks, cascading backstays and other applications requiring minimal fine-tune adjustments. Rings are Hard Lube-anodized 6061-T6...

Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. Sheave: 22 mm / 7/8 in Length: 38 mm / 1 1/2 in Weight: 28 g / 1 oz Maximum line: 6 mm / 1/4...

Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. Sheave: 22 mm / 7/8 in Length: 67 mm / 2 5/8 in Weight: 28 g / 1 oz Maximum line: 6 mm / 1/4...

Harken® Lead Rings are simple, weight-saving devices used to route line for jib in-haulers, twings, barberhaulers, lazy jacks, cascading backstays and other applications requiring minimal fine-tune adjustments. Rings are Hard Lube-anodized 6061-T6...

Harken® Lead Rings are simple, weight-saving devices used to route line for jib in-haulers, twings, barberhaulers, lazy jacks, cascading backstays and other applications requiring minimal fine-tune adjustments. Rings are Hard Lube-anodized 6061-T6...

The Ronstan Shock Block is a sheaveless block designed for a wide range of uses. This lightweight and versatile block is an alternative to a traditional block. The best part is they only weight 2grams each, yet have a working load of 385lbs. They...