Allen 40mm Single Block with Swivel Head & AL-0077 Cleat Select (See Table Below):AL-20401-77 40mm Single Block with Swivel Head & AL-0077 Cleat - EACH ISO 15027-1 compliant

ISO 15027-1 compliant

automatic operation

Material Zinc Primary Construction Zinc Style Pear Anodes Suitable For Salt Waters Fixing Bolt-On Brand AG

Manufacturer Part Number: 7049-BSS

Allen 40mm Single Block with Swivel Head & AL-0077 Cleat Select (See Table Below):AL-20401-77 40mm Single Block with Swivel Head & AL-0077 Cleat - EACH ISO 15027-1 compliant40mm Single Block with Swivel Head & AL 0077 Cleat Made from high strength, lightweight glass loaded nylon and featuring Allens dynamic bearing technology for a high performance block suitable for keelboats and dinghies. 40mm dynamic blocks are perfect for use on main, jib and spinnaker sheets on dinghies and keelboat control lines. Bearings Dynamic blocks feature Allen's patented bearing system which uses twin rows of stainless steel ball bearings