XAS0408 Lines: 4mm - 8mm (5/32" - 5/16")Loads up to 400kg (880lbs) XAS0612 Lines: 6mm - 12mm (1/4" - 1/2")Loads up to 575kg (1270lbs) XAS0408 (4-8mm) for high performance on small diameter lines XAS0612 (6-12mm) for superb performance across the rope range Easy access handle for effortless release Line friendly Side mountable Endless line version Handle labels supplied Replaceable parts, easy to upgrade and maintain XAS0408 for 4-8mm line gives optimised clutching and holding power on small diameter lines. Strongly recommend for sportsboats and other small boat high performance applications.