The HD Innovations UMS Multi-Use Plate gives forward-facing sonar anglers a strong, versatile mounting base for dialing in transducer pole placement while tracking bass, walleye, crappie, pike, and panfish around cover, structure, and open-water targets. Crafted from solid billet aluminum and CNC machined to shape, it provides a rigid platform that slides directly into any 3 in. mounting track, mounts to adapters with a 4-bolt rod holder pattern, or direct mounts with user-supplied hardware. A thin TPU grip surface overmolded onto the ball helps improve hold and stability, while the added cross pin hole gives anglers optional locking control at their discretion. When using two pins for 100% locked mode, confirm that no underwater obstacles can contact the transducer pole. Solid billet aluminum construction with CNC-machined shaping provides strength and precision Slides into any 3 in. mounting track, fits 4-bolt rod holder pattern adapters, or direct mounts with user-supplied hardware Thin TPU grip surface overmolded onto the ball improves grip and mounting stability Added cross pin hole supports optional locking, with caution required when using two pins in 100% locked mode Please note: Arm and tack are not included. Plate only.