Harken 29mm Double Block

29 mm Carbo 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 fiber-reinforced composite construction.Ball bearings, sheave, and sideplates are UV-stabilized. Sheave Ø (mm) 29 mm Sheave Ø (in) 1 1/8 in Maximum line Ø (mm) 8mm Maximum line Ø (in) 5/16 in Maximum working load (kg) 299 kg Maximum working load (lb) 660 lb