Blocks

Low-friction Carbo AirBlocks® are lightweight, strong, reliable—and affordable. These small, compact blocks have very high working loads for safe, easy trimming. Zim Applications C420/CFJ: spin sheet block, outhaul block on boom   Harken...

Made of durable, flexible PVC, stand-up boots holdblocks up without snagging lines. Fits 40 mm and 57 mm blocks  Zim Applications Opti: mainsheet block Harken Part # 369

This block is a special version of the 224 22 mm single Micro block with a removable sheave. The sheave rivet has been replaced with a clevis pin and cotter ring. Micro block sheaves run on Delrin® ball bearings for fast trim and release under load...

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: 29 mm / 1 1/8...

Low-friction Carbo 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: 29 mm / 1 1/8 in Length:...

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...