Wire Block - Tubular Rivet Head w/Removable Nylatron Sheave - 45mm(1-3/4") Sheave DiameterWire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire terminationFeatures: Flared cheeks to minimise chafing Removable sheavesApplications:Wire blocks suit halyards, vang and backstay applicationsMaterials: Grade 316 stainless steel cheeks Nylatron sheave Specifications:Sheave : 45mm(1-3/4")Max. Cable : 6mm(1/4")M.W.L:850kg(1,870lbs)B.L.: 1,700kg(3,740lbs)Weight: 88kg(3.1oz) table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Truck Freight: No Oversized: No