Flared cheeks to minimise chafing Removable sheaves Grade 316 stainless steel cheeks Nylatron® sheave Wire blocks have purpose deisgned narrow sheaves and grooves. Removal sheave for easy fitting and without cutting the wire termination Wire blocks suit halyards, vang and backstay applications Specifications Sheave Ø 45 mm Max. Rope Ø - mm Max. Cable Ø 6 mm Pin Ø - mm M.W.L. 850 kg B. L. 1700 kg Weight 80 g