Get the motor height where you want it and keep it locked in with the T-H Marine Z-Lock Manual Jack Plate, a manual jack plate that helps anglers tune boat performance for bass, walleye, redfish, and other game fish when shallow-water access, lift, and holeshot matter. This secure mounting plate handles V6 and V8 outboards up to 300 hp and uses the Z-Lock system to eliminate side slippage, so the setup stays firm under hard runs and rough-water travel. Strong aircraft-grade aluminum with a full 1/2 in. material thickness gives it the strength needed for larger outboards, while 5 in. of vertical adjustment gives boaters room to fine-tune engine height for load changes, running conditions, and overall handling. Secure mounting plate for V6 and V8 outboards up to 300 hp Z-Lock design eliminates side slippage for a more stable setup Aircraft-grade aluminum construction with a full 1/2 in. material thickness 5 in. of vertical adjustment for dialing in engine height and on-water performance Manufacturer's one-year warranty Made in the USA