Protect your steering system, outboard, and motor supports with this boat lock from T-H Marine. This steering stop is designed for outboards and locks hydraulic steering during trailering. Simple to install and remove, units clip onto hydraulic steering rams on either side of outboard to keep engine centered and prevent damage to motor supports. The included cord keeps units together when stowed and aids in removal. Snaps over most steering cylinder rods on outboard engines. 4" lock.