Allen Sheave Acetal Double Row Bearing Ball 28.2*11*5.1mm

Stainless Steel Spring 42*26*2mm

Harken Micro Block 16mm Single

Allen Sheave Aluminium Plain Bearing 28.6*8.2*8.3mm

Antal Sheave Composite Ball Bearing 40*12*80mm

Allen Padeye Pad-Tii Aluminum M16*10mm

These smooth-running powerful performers make trimming easy, no matter how hard the wind blows. Carbo Air blocks are made of tough reinforced composite in a size and style to fit any system: singles, doubles, triples; soft and hard attach. Perfect for main, jib and spinnaker sheets on dinghies and sportboats; control lines on boats of all sizes. Lightweight, strong and reliable...

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

Harken Carbo 40mm Single Block Asymetric Kit

Harken Micro 16mm Single Block Removable Sheave

Harken Zircon Block 29mm Single Soft Attach Zircon blocks help trimmers match sail shapes to new conditions immediately. At the core of the Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings separated so they don’t bunch, touch, and stop each other.