Recommended for motors with Dual/Hydraulic Steering.. Keeps your engine straight during trailering. Fits most cylinder rods on engines manufactured in 1997 and newer. Snaps over outboard's hydraulic steering cylinder rods. Helps keep engine centered during transport. Made Of EPDM Rubber. UV Protected. Saltwater Safe. To install, position the motor in the straight forward steering position with an equal amount of the hydraulic cylinder rods extending from each side of the cylinders.