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) - cis2:mm5mnJlm -