Ronstan Single Upright Lead Block Wichard Long Shackles Overall knife length: 7 19/32"

Overall knife length: 7 19/32" (195 mm) 4 12/32" (115 mm)

Wichard 2 11/64" (55mm) Ball Bearing Fiddle Block w/ Swivel Head & Becket

Schaefer Aluminum Fiddle Block with Swivel Shackle and Cam

Fits: Medium / Large - fits Harken 40 and 40ST and Lewmar 40ST

Ronstan Single Upright Lead Block Wichard Long Shackles Overall knife length: 7 19/32"Product Description Ronstan Single Upright Lead Block Features Sheave 3 4 in. Max. Rope 5 16 in. Max. Cable in Fastener 3 16 in. M. W. L. 550 lb. B. L. 1100 lb. Weight 0. 7 oz. Product Information 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