The SX6 is designed with T8 aluminium tube, with increased wall thickness to 3.8 mm for the heavy duty durability, secure connection and ease of operation. Fitted with a stainless steel cleat/pulley offering the best weight to stiffness ratio and creating very light weight as well as being very durable and load resistant. Quick-lock release. Designed for maximum longevity. Features - Quick-lock release. - Stainless pulley system for less friction and greater durability. - Stainless clamshell adjustment system. - Dynema rope for reduced friction and increased longevity.