Overview Reviews Similar Products –> Product Description Single Lead Block – 29mm(1-3/32″) Sheave Diameter Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Applications: Typically used in dinghy spars for control lines Materials: U.V. stabilized Acetal sheave Grade 316 stainless steel load housing Sheave : 29mm(1-3/32″) Max. Rope : 6mm(1/4″) Fastener : 5.0mm(3/16″) M.W.L.: 600kg(1,320lbs) B. L.: 1,200kg(2,640lbs) Weight: 50g(1.8oz) Product Videos Custom Field Product Reviews Write a Review Write a Review Ronstan Ronstan Single Lead Block – 29mm (1-3/32″) Sheave Diameter Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *