The Allen Vang Strut For M24 is designed to provide optimal support for booms on yachts up to 26ft. It features a telescopic gas strut with a plain bearing 37.8mm sheave and a unique attachment post with reinforced holes for dead-ending ropes or attaching blocks. The included 4mm Dyneema primary lines and 30mm triple dynamic blocks make for a high-quality, efficient system. Please note that the gas strut can be adjusted to reduce return pressure, but cannot be reinflated. Order the required length of main control line separately to complete the setup.