Chinook 11 Inch Windsurfing Mast Base Extension feature a quick adjust hinged collar, power-haul pulley and cleat system, and anodized logo/index markings. This extension adds 11 to mast length.
Key Features of the Chinook 11 inch Windsurfing Extension:
Quick Adjust Hinged Collar: No more parts to lose and adjustments are a snap. Retro-fits on older aluminum extensions.
Has new Power-Haul Pulley and cleat system. (6:1 max purchase). Line stows inside the extension when fully rigged. Push pin loading ramps. The standard for US mast bases(Compatible with many other brands). Metric index markings screened on.