Blocks

The Ronstan 25 mm Orbit Block is a single sheave ball bearing block with lashing head. This block expands the popular Ronstan Orbit Series, which also includes 20mm, 30mm, and 40mm blocks. This 25mm size has been designed specifically for ILCA and...

The Ronstan 25 mm Orbit Block is a single sheave ball bearing block with becket hub and swivel shackle head. This is a great choice for ILCA sailors looking to upgrade their deck block assembly, or for any dinghy sailor looking for a single block with...

The new Harken Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their set-ups in tandem with the purchase that...

A low-friction Harken 29mm Carbo AirBlocks from Harken. A lightweight, strong, reliable and affordable block. This variation comes with a removable bolt through the middle so it can be undone and connected to various locations on your boat...

The Ronstan 55mm Orbit block is small and compact. Used on high performance boats, these blocks are used by the best and perform for the best. Made from advanced fiber and polymer technology, these blocks are ten times stronger than steel, yet more...

The Ronstan 30mm Orbit block is small and compact. Used on high performance boats, these blocks are used by the best and perform for the best. Made from advanced fiber and polymer technology, these blocks are ten times stronger than steel, yet more...

The Ronstan 40mm Orbit block is small and compact. Used on high performance boats, these blocks are used by the best and perform for the best. Made from advanced fibre and polymer technology, these blocks are ten times stronger than steel, yet more...

Size-for-size in our expanding range, Harken Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings...

Size-for-size in our expanding range, Harken Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings...

Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. The Harken 466 features a forkhead and becket making it useful for vangs, halyards and control lines. Sheave Ø - 25 mm / 1...

The Ronstan 15 mm Utility Block range offers small boat sailors a lightweight, stainless steel block range for a variety of applications such as control lines and shockcord tension systems. This is the basic loop head type single block, great for lashing...

29mm Bullet Block Single with Swivel from Harken. 29mm Single Swivel Block

29mm 90 Degree Traveler Blocks from Harken. 29mm Two single blocks at 90 angle for use with traveler applications Made by Harken

57mm Single Swivel Block from Harken. 57mm Single Block

40mm Carbo Fiddle Block from Harken. 40mm Fiddle block with a becket Made by Harken ONE DESIGN APPLICATIONS This fitting is commonly used and/or recommended for the following one design sailboat applications: J/22 Vang Floating Block (x1) Sonar Lower...

38mm Big Bullet Block w/ Swivel from Harken. 38mm Single Swivel Block