Replacement model: 2207003 Compatible with Cannon Uni-troll, Lake-Troll, Easi-Troll, Sport-Troll, Digi-Troll, Mini-Troll, Marlin, Manual, Magnum 5 / 10 / 10 TS (Tournament Series) and Optimum Electric downriggers This low profile swivel mounting base allows for easy installation on a variety of boat surfaces, effectively saving space and taking up only minimal room on your boat deck or side STURDY CONSTRUCTION: Constructed of durable materials to withstand harsh marine environments and ensure long-lasting performance Features 16 locking points for smooth 360-degree rotation, with locking positions every 22.5° and a swivel function for optimal positioning and lowering of the spreader The 2207003 Low-Profile Swivel Mounting Base allows you to securely mount the lower strut to your boat. This low-profile base swivels to easily adjust the angle of the lower strut for optimal positioning. It is constructed of durable materials to provide a stable and reliable mounting solution for your fishing adventures. With its swivel feature and low-profile design, this mounting base ensures a secure installation while minimizing obstruction of your boat's deck