ENHANCED RIGIDITY - The backbone significantly improves kayak stiffness, leading to better performance and stability on the water, especially in challenging conditions. SUPERIOR TRACKING - Achieve straighter, more efficient paddling with the backbone, which optimizes the kayak's ability to maintain a consistent course, reducing wasted energy. DURABLE CONSTRUCTION - Made with anodized aluminum alloy and plastic, the backbone is built to withstand harsh marine environments, ensuring long-lasting performance and reliability. EASY INSTALLATION - Quickly attach the 79.5" backbone to your Advanced Elements kayak for an immediate upgrade in handling and responsiveness, without complicated tools. VERSATILE COMPATIBILITY - Designed specifically for Advanced Frame and Advanced Frame Sport Kayaks, this backbone seamlessly integrates, enhancing your kayaking experience.