Attwood LightArmor 3-Pin Round Straight Pole Base - BlackAttwood LightArmor 3-Pin Round Pole Base is designed for premium performance, styling, and durability. This LightArmor Pole Base has a threaded design feature that fits perfectly with the threaded locking collar offered on Attwood Pole Lights. This unique system ensures a tight and secure fit that prevents annoying rattling while underway or trailering.Key Features: Upgraded styling and appearance; Threaded locking system for secure fit; Unique cover design stays secure while underway or trailering; Low-profile prevents water from pooling on top surface; Replaces Attwood Part #91021-7;