HARKEN 38mm Triple Big Bullet Block, 129 Item Type_Wedge Kits and Risers Harken 75mm ESP Single Block

Harken 75mm ESP Single Block with a high-strength axle bearing suited for running backstays

They use a combination of scientifically optimized block geometry

where deformation of ball bearings alone would result in increased friction

Low-profile mast base halyard lead blocks are lightweight and can be grouped in a small area at the mast base

HARKEN 38mm Triple Big Bullet Block, 129 Item Type_Wedge Kits and Risers Harken 75mm ESP Single BlockLow friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Wire Bullet blocks use roller bearings to carry higher loads and features Hard Lube anodized aluminum sheaves for strength and corrosion resistance. Mast exit blocks with cams are used for halyard controls and under boom mainsheets.