Harken 2.25" Upright Lead Block RHKYC-Branded Rowing & Paddling Clothing They prevent the block from

They prevent the block from capsizing by pushing the lashing line to the outer edges of the sideplates

Breaking load (lb)1000 lb

Maximum working load (kg)220 kg

allowing you to tension the luff separately from the mast rake

Sheave Diam (mm)=29

Harken 2.25" Upright Lead Block RHKYC-Branded Rowing & Paddling Clothing They prevent the block fromPart No. 206 The 2. 25 in (57 mm) blocks are compact and lightweight, with fast trim and release under high or low loads. Perfect for dinghies, scows, beachcats and iceboats, as well as small offshore racers and cruisers. Sheave (mm)57 mm Sheave (in)2 1 4 in Length (mm)83 mm Length (in)3 1 4 in Weight (g)156 g Weight (oz)5. 5 oz Maximum line (mm)12 mm Maximum line (in)7 16 in Fasteners (mm)5 RH mm Fasteners (in)#10 RH in Maximum working load (kg)227