A strong, lightweight range of blocks for use on dinghies, day boats and light cruising yachts. Ideal for mainsheet, vang, lead blocks or wherever a powerful and compact purchase tackle is required.Sheave size: 45mm x 13mm (1 3/4 x 1/2")Max rope diameter: 10mm (3/8") SWL: 400kg (881lbs)Break load: 8000Kg (1763 lbs)  Length: 111mmWeight: 81g