Function: The outboard jack plate is the solution for long shaft engines with a short shaft transom. The jack plate allows the boat to navigate in shallower waters, which is difficult for a normal engine to do. It also reduces fuel consumption. High quality: The outboard jack plate is made of stainless steel fasteners for maximum strength and durability. Durable, anti-wear and anti-rust, not easy to damage, so that you do not need to worry about the problem of broken or rust in daily use. Condition: Adjusts easily by turning one steel bolt, offers 4 inches of adjustable Vertical movement,8 inches of setback, Weighs 32 lbs.