Heavy-Duty Composite Construction: Features rugged composite materials that provide superior strength and UV resistance for lasting durability Legacy Uni-Troll Specific: This is the Legacy Uni-Troll mounting base; Cannon Universal Base also available for other downrigger models Strong Yet Removable: Provides rock-solid mounting platform while allowing easy removal of downrigger for storage, maintenance, or boat transfers UV and Corrosion Resistant: Engineered to withstand years of sun exposure and water contact without degrading or weakening over time Model-Specific Design: Engineered specifically for Legacy Uni-Troll downriggers to ensure perfect fit and optimal performance characteristics