Harken 57mm Carbo Single Block with Swivel/150 Cam-Matic and Becket Sale_20plus you can attach a block

you can attach a block to this hole for further friction reduction

Hard wearing tarpaulin and polyester fabric with a waterproof coating

Kit includes hardcoat-anodized 150 aluminum Cam-Matic® and 375 X-Treme Angle Fairlead

This essential piece of sailing gear has an ergonomic fit and high-stretch outer face to increase comfort and ensure best fit

Harken 57mm Carbo Single Block with Swivel/150 Cam-Matic and Becket Sale_20plus you can attach a blockLow friction Carbo Air blocks are lightweight, strong, reliableand 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 Length 132 mm Weight 442 g Shackle Pin 5 mm Maximum Line 10 mm Maximum Working Load 272 kg Breaking Load 680 kg Footnote: Maximum working loads and breaking loads for blocks based on cam strengths.