Shaft Double horizontal birch lamination covers a two-piece aspen core, reinforced by vertical fiberglass lamination Paddle & Blade Unique ultra-light design Highly refined assembly techniques ensure constant weight and stiffness Injected polyurethane foam with continuous fiber strand mat for shock absorption Covered in fiberglass for optimum durability Blade reinforced with fiberglass laminate for maximum stiffness and durability Unique personalized designs