The T-H Marine Pro Hi-Jacker Manual Jack Plate helps anglers fine-tune outboard height and setback for better boat performance, cleaner water flow, and improved control when running to bass, walleye, and multi-species spots. This one-piece manual jack plate uses 3/8 in. aluminum construction and handles outboards up to 175 HP, giving boaters a strong mounting upgrade for dialing in holeshot, shallow-water operation, and on-plane efficiency. With 4 in. of vertical adjustment and 6 in. of setback, it gives you room to adjust motor position to match your hull and fishing style, while the top-adjust design and locking bars allow one-wrench adjustment for simpler setup changes. For anglers who want a dependable way to tune motor height without moving to a hydraulic system, this jack plate brings practical adjustability and solid support to the transom. 3/8 in. aluminum construction supports outboards up to 175 HP 4 in. of vertical adjustment helps dial in motor height and performance 6 in. setback helps improve prop position and water flow to the motor One-piece top-adjust design with locking bars allows one-wrench adjustment Made in the USA